According to Expressen, the man suspected of three murders in Barcelona previously lived in Uppsala where he read law.
According to Spanish media, the man is suspected of three murders that occurred within the course of an hour on Monday.
He was arrested in connection with a robbery attack, in which a man in his 50s died as a result of his injuries from the assault.
On the same day, a dead man, who was subjected to violence, was found in an apartment. The body was found after a fire department was alerted to a fire in the property, and witnesses and video recordings show how one leaves the property through the house's balconies while smoke is emitted from the apartment where the dead man was found.
According to Spanish media, another dead person was found in a staircase about 600 meters from the first murder scene. The woman is believed to have been killed by a blow to the head.
The Swede should not have committed any more serious crimes than before, writes both Expressen and UNT.
The Swedish Ministry of Foreign Affairs has confirmed that a man resident in Svealand has been arrested.