“Our suspect is also known to psychiatric services, beyond that I don’t want to comment,” said Copenhagen police chief Søren Thomassen, who added that the victims were targeted at random. A day before the rampage, the suspect posted videos on social media that police said are authentic. In them he posed holding an illegal gun and rifle to his head. He wrote “Quetiapine not working” on playlists titled “Killer Music” and “Last Thing To Listen To” that he uploaded to YouTube. Quetiapine is used to treat mental health illnesses such as schizophrenia. YouTube and Instagram accounts believed to belong to the suspect have now been shut down. Danish broadcaster TV2 released a grainy photo of the alleged gunman, a man wearing knee-length shorts, a vest or sleeveless shirt and holding a rifle in his right hand. Witnesses said the suspect tried to trick people by saying his gun was fake to get them to come closer. Prime Minister Mette Frederiksen said there would be discussions about whether or not to tighten gun laws in Denmark, but that now was the time to remember the victims as she visited the mall on Monday.