In recent years, Mohamed Hagi Farah has seen how many young men were murdered in gang deals in the Järva area.
This time it happened instead in Hammarby Sjöstad, an area that is usually spared from fatal shootings.
- We share the anxiety they feel.
For them, fatal shootings are something new, but unfortunately we have lived a long time with this grief in the area.
It is important for us to show that we are parents no matter what background we have and that we suffer together with them, says Mohamed Hagi Farah.
He says that it takes a great deal of power in society, among parents and authorities, to do something about the deadly violence.
Nasteha Ali is also one of the night walkers.
She went straight from work to Hammarby Sjöstad to show her support.
- We want to show that no matter where we come from, no matter what we look like, we are all people with the same feelings.
It was at 22.50 on Thursday evening that residents alerted the police after hearing loud bangs that sounded like shots.
Once there, a gunshot wounded man was found who was later confirmed to be Nils Grönberg, who is known by the artist name Einár.