10th August
The Swedish journalist Kim Wall is on the submarine UC3 Nautilus together with the owner Peter Madsen to do a report.
She is observed on the boat in Copenhagen at 7.30 pm.
READ MORE: The family: It is with great dismay that we have received the message
August 11th
At 02.30, the journalist's partner alerts the defense because the submarine has not returned to its berth in the port of Copenhagen.
At 03.39, the Danish police receive an alarm about a suspected maritime accident.
Early on Friday morning, the search for the submarine UC3 Nautilus begins.
Both the Swedish and Danish defense participate.
On Friday at 10.30 the submarine will be sighted at Kögebukten.
Radio contact is made with the submarine owner Peter Madsen who announces that he is on his way back to the harbor.
Everyone on board the boat should feel good, it is said then.
READ MORE: Police: We have not found any body in the submarine
Friday at 11 o'clock the submarine suddenly sinks.
Peter Madsen is rescued but the woman is not found.
A maritime interrogation is carried out with Madsen, who is initially not suspected of a crime.
At 13.30, the Danish police announce that divers will try to get into the submarine.
The divers fail.
At 17.44, word arrives that Peter Madsen is suspected of murder or manslaughter.
Madsen denies any wrongdoing and claims that Kim Wall was released in Refshaleøen at 10.30pm on Thursday night.
12th of August
Just before 10 o'clock on Saturday morning, the Danish police begin rescuing the submarine.
In the afternoon, Peter Madsen is heard in the courtroom behind closed doors.
READ MORE: We know this about the suspected submarine owner
Peter Madsen is arrested on suspicion of having caused the woman's death due to negligence, which can be compared with the Swedish term "causing another person's death".
On Saturday evening, the submarine will be towed to Nordhavnen in Copenhagen.
August 13th
Early on Sunday morning, Nautilus is emptied of water.
At 10 o'clock, the police forensic technician enters the submarine.
At 11.30, the Danish police hold a press conference and announce that no body has been found in the submarine.
The submarine is seen as a possible crime scene and the police believe that it was deliberately sunk.
The submarine owner Peter Madsen has stated that the submarine sank due to a fault in the ballast tank.
The police are still searching for the missing journalist - on land, in the water and from the air.
August 14th
Henrik Brix, head of security at the Copenhagen Police, tells Expressen that the police do not rule out that the Swede may have been taken abroad, for example to Germany.
The inventor Peter Madsen accepts the arrest but continues to deny the crime, his lawyer for Danish TV2 states.
August 16th
The criminal classification is changed to that Peter Madsen is suspected of causing another person's death under "particularly aggravating circumstances".
TV: The submarine owner is suspected of having caused the Swedish journalist's death
August 17th
The police say that they are now looking for a dead person.
You look mainly in the area around Kögebukten.
August 19th
Helsingör Dagblad states that Peter Madsen wanted to fix something in the submarine just before it sank.
21th of August
The mystery takes a dramatic turn when the Copenhagen Police in a press release say that Peter Madsen has admitted that he "buried Kim Wall in the sea".
According to the press release, she must have died as a result of an accident.
The police were alerted that a badly wounded body had been found in the water on the southwest side of the island of Amager.
The police announced at a press conference that the body is the remains of a woman, but that it has not been possible to determine whether it is the missing Swedish journalist.
August 23
Early on Wednesday morning, the Danish police announced via Twitter that it is Kim Wall's remains they have found.
They have identified the body through a DNA match.
At a press conference, it emerged that traces of blood had been found on board the submarine that could be connected to Kim Wall.
Someone has also wanted the body to disappear into the depths of the sea, among other things by weighing it down with metal.
Cause of death or possible motive, the police did not want to comment on.
August 24th
The Danish Public Prosecutor's Office announces that they will change the classification of crimes and that no later than 5 September, Madsen will also be remanded in custody for murder and breach of the peace.
Peter Madsen denies the allegations of murder and causing another person's death.
READ MORE: Madsen admits: "There was an accident on the boat"
August 29th
The police are conducting another search of the submarine, following tips to the police that there may be cavities in the submarine that have not yet been searched.
August 30th
Copenhagen police will not find any hidden spaces on the submarine Nautilus, reports Danish TV2.
That conclusion could be drawn after the vehicle was examined with a special scanner.
Swedish dog handlers assist the Danish police in the search for traces of Kim Wall.
The Swedish dogs have an additional dressage that allows them to look for people in the water.
The news agency Ritzau reveals that the Danish police knew that Kim Wall was dead before Peter Madsen was arrested.
He is said to have told that he "buried her in the sea" already in a first interrogation with the police.
READ MORE: The police were informed of Kim Wall's death before Madsen was arrested
September 3
Madsen announces via his lawyer Betina Hald Engmark that he wants the remand hearing to take place with open doors.
September 5
A new arrest hearing, before open doors, is being held against Peter Madsen in Copenhagen District Court.
He was detained for four weeks, suspected of murder or manslaughter, as well as a breach of the peace.
October 3
New arrest negotiations are being held against Peter Madsen - he is being remanded in custody on suspicion.
It appears, among other things, that film material containing torture and murder of women has been found on Madsen's hard drive.
October 7
Copenhagen police confirm that they have found body parts and clothes identified as Kim Walls after the search in Kögebukten.
According to the police, there are no signs of fractures on Kim Wall's head, which contradicts Peter Madsen's explanation that Kim Wall died in an accident when she received a heavy metal hatch in her head.
READ MORE: Body parts from Kim Wall identified
October 9
Madsen's DNA can be compared with unsolved Swedish and Danish murder cases. This is part of the so-called Prüm Convention, where countries cooperate by sharing DNA and fingerprints.
In Sweden, there are about 120 unsolved murders.
11 October
Madsen refuses to talk to the police after the new findings of Kim Wall's remains, and still denies both murder and that he would have cut his body.
October 12
On Wednesday, October 11, a saw is found in Kögebukten.
The saw was found near the route that Madsen's submarine drove in August.
October 30
According to the Copenhagen Police, Madsen admits that he cut Kim Wall's body and threw the parts into Kögebukten.
He also changes his explanation to the fact that Kim Wall is said to have died of a carbon monoxide poisoning inside the submarine when he himself was up on deck.
The crime classification is expanded and Madsen is suspected of sex crimes with particularly aggravating circumstances, as Kim Wall is said to have received stab wounds in the lower part of the torso.
READ MORE: Madsen admits that he dismembered Kim Wall's body
November 1
Madsen's defense lawyer Betina Hald Engmark rejects the police's information that Madsen had told about how Kim Wall died.
According to the lawyer, the police have misinterpreted Madsen's explanation in a police interrogation.
The Copenhagen Police specify what was said in the interrogation as follows: “Peter Madsen has explained that Kim Wall may have died of carbon monoxide poisoning.
He has not determined that it is the cause of death ", said Jens Möller at the Copenhagen Police.
November 3
The Danish Bar Association supports Madsen's defense lawyer and criticizes the police's actions.
"The police have planted an impression that will not just disappear again," Kristian Molgaard told BT.
READ MORE: Madsen's lawyer: "He has not said how Kim Wall died"
November 14
Peter Madsen announces via his lawyer that he voluntarily chooses to remain in custody.
Thus, the arrest negotiations are suspended.
New negotiations will be held on 13 December.
22 November
Danish police confirm that the arm found in Kögebukten on November 20 is linked to the submarine case.
The arm had been lowered with metal tubes in the same way as the other body parts previously found.
29 November
The Danish Armed Forces finds another arm in the area in Kögebukten where other body parts have been found.
11 December
The forensic psychiatric examination of Peter Madsen is handed over to the prosecutor.
However, the result is not published.
December 29
Book series about Kim Wall stopped after criticism.
The Danish audiobook series was considered to profit from a murder as entertainment before there was even a verdict.
2018
9 January
Peter Madsen agrees to be detained for another four weeks.
January 16th
The prosecutor files the indictment against Peter Madsen.
The Danish submarine owner is accused of having murdered the Swedish journalist Kim Wall.
He is also charged with sexual offenses with particularly aggravating circumstances and for cutting Kim Wall's body.
March 8th
The trial against Peter Madsen begins in Copenhagen District Court and prosecutor Jakob Buch-Jepsen presents his case.
Peter Madsen continues to deny having murdered Kim Wall.
21 March
The second day of the trial.
Peter Madsen is being questioned by both prosecutor Jakob Buch-Jepsen and defense lawyer Betina Hald Engmark.
Madsen does not want to comment on the dissection of the body.
The court shows films from Peter Madsen's computer against his will.
March 22
A forensic doctor testifies and confirms that it is not possible to substantiate Peter Madsen's explanation for Kim Wall's death.
The forensic doctor says that the autopsy shows signs of violence.
Another five people testify.
Two of the witnesses were present when Madsen was rescued, one picked him up from the water.
An intern and Kim Wall's boyfriend were heard.
March 23
Witnesses are questioned.
A friend of Peter Madsen testifies that he talked to her about death, snuff movies and how he could become more dangerous.
An intern and a sailor are also heard.
In the afternoon, the audience is forced to leave the courtroom when a fourth witness is to be heard behind closed doors.
March 26
Nine witnesses are being questioned, three of them are mistresses of Peter Madsen.
None of them testified that they were involuntarily subjected to sexual violence by him.
A documentary filmmaker testifies that Peter Madsen said that he is probably a psychopath and "wanted to get better at keeping quiet, as if he were the main suspect in a murder".
March 27
Witnesses are questioned.
One woman says she was asked to join the submarine just days before Kim Wall died.
More movie clips are shown to the court.
The films have been found on various external hard drives or searched from Peter Madsen's phone.
The films contain sex and violence.
March 28
Peter Madsen is interrogated and gives his version of what happened the day Kim Wall died.
He believes that the reason for her death is because he did not set the submarine's valves correctly.
Shortly after Kim Wall's death, Peter Madsen sent an SMS to his then wife.
It says: "I am on an adventure with Nautilus, sailing in moonlight".
The text message also contained "hugs" to the couple's cats.
April 3
Two technical experts were heard.
One expert, who did the technical examination of the submarine, said that the submarine was deliberately lowered.
The expert dismissed Madsen's claim that Kim Wall had been poisoned by gas inside the submarine.
The other expert said that Madsen may be right in his claims about the negative pressure in the submarine, but pointed out that in such a scenario the temperature in the craft would amount to one hundred degrees after just a few minutes.
When a forensic doctor testified early in the process, there was no sign that Kim Wall had been exposed to that type of strong heat.
April 4
The prosecutor went through documentation that was found in, among other things, Peter Madsen's computer.
A witness was heard, where Madsen had texted her the days before Kim Wall's death and asked if she wanted to join the submarine.
April 5
The forensic psychiatric examination of Peter Madsen is reported, but does not have time to be completed.
April 23
Continuation of the forensic psychiatric examination by Peter Madsen.
Prosecutors and lawyers gave their closing speeches.
Prosecutor Jakob Buch-Jepsen demanded life imprisonment or detention.
Lawyer Betina Hald Engmark demanded six months in prison for violating the peace.
April 25
Peter Madsen is sentenced to life in prison for the murder of journalist Kim Wall.
The lawyer announces that the verdict will be appealed.
September 5
The Court of Appeal proceedings against life sentence Peter Madsen started in Copenhagen's Östre Landsrätt.
September 14
The Court of Appeal's judgment against Peter Madsen would have fallen, but the negotiations were stopped after a jury member collapsed.
September 26
The fourth and final day of the trial in the Court of Appeal - which confirms Peter Madsen's life sentence.