Berliners mourned Monday after the deadly attack near the city's Pride festival as questions mounted over how the suspect was able to move freely following a conviction linked to his ties to the Islamic State group.
The 21-year-old Abdul Ballout, a German citizen, was killed following a search that lasted nearly 24 hours after Saturday night's attack in downtown Berlin. He was suspected of driving a van into a crowd near the Pride festival before apparently cutting others with a machete in what authorities believe was an extremist terror attack.
