Akayed Ullah is convicted a year after the attack near New York's busiest bus terminal.Read more
New York Port Authority explosion
CCTV footage appears to show a blast going off in a passageway between two busy subway stations.
Police identify 27-year-old Akayed Ullah as the suspect who detonated an improvised explosive device.
An explosion in the subway system injured four and caused chaos in rush hour. This is what happened.