Angel Colon is the only living participant in an armed shakedown of Stan Harkavy’s tax office, where the two other armed burglars were killed and Angel was wounded. He knew the subordinate on staff, Gregory Cardenas, who was beaten by one of the burglars, so Angel wasn’t an active participant.
With it being unusual for him to be involved, as he was applying for a corrections officer position, he was interrogated from his hospital bed, albeit with police brutality by shifting his bed enough he needed painkillers. It was revealed the crew was hired by Max Purcell so he’d purchase the property for gentrification. (L&O: “Shotgun”)