Questions mount after deadly Berlin Pride attack. Here’s what to know

A 21-year-old German man with Lebanese roots, Abdul Ballout, was killed after a van and machete attack near Berlin's Pride festival, which resulted in one death and 29 injuries. Ballout, previously convicted of preparing violence and supporting Islamic State, was released from juvenile custody despite prosecutors appealing his suspended sentence. Questions persist over how he was allowed to move freely despite extremist ties.