As people placed flowers and candles close to the shopping mall where a man killed nine people on Friday night, some witnesses to the attack found it hard to fight back the tears as they explained what they had been through the night before.
The 18-year-old German-Iranian gunman was later found dead of a suspected self-inflicted gunshot wound.
Dardan Hassan was at the shopping mall when the attack happened. He said he was afraid for his family.
"I experienced terrible moments. I saw a bloodbath, with the bodies lying on the ground. I saw a young man, I saw bodies, I talked to the mother of an injured person on the phone and I told her her son was ok and he would make it, but he was saying to me 'I don't want to die but I am dying'," he told reuters outside the cordoned area.
"I am afraid for my family because I live right there and they live just there," he said.
Bayri Hidayet received a call and a message with a video from his son telling him not to go to the mall.
In the video, a wounded man covered in blood was lying on the ground.
"When the shooting happened my son rang to say not to come into the building. He was on the ground and somebody was shooting. Then I arrived and saw the bodies," he told media as he showed the video.
"I saw four bodies downstairs and four upstairs - eight bodies in total. All of them of young people," he added.
Authorities said it was too early to say whether it was a terrorist attack, and said they had no immediate evidence of an Islamist motive.