Hundreds of people gather for a vigil near the cultural club in Copenhagen, Denmark, Monday, Feb. 16, 2015. The slain gunman behind two deadly shooting attacks in Copenhagen was released from jail just two weeks ago and might have become radicalized there last summer, a source close to the Danish terror investigation told The Associated Press on Monday. The prime ministers of Denmark and Sweden were expected to join thousands of people at memorials in Copenhagen on Monday evening. (AP Photo/Michael Probst)