Aside from having nearby patrol officers keep an eye on Mario's location, Chuck's team brought along a few additional people and began tracking Mario. Based on surveillance and the gunfire heard earlier that day, they could surmise that the people pursuing Mario were two or three at most. Therefore, with so many detectives, as well as the surrounding patrol officers, there shouldn't be any problems.
After leaving his ex-wife's apartment, Mario didn't leave Brooklyn but instead hid in an underground motel. This kind of place didn't check their identity; they gave you a room for money, making it very popular among people like them.
However, Mario had underestimated the speed at which information traveled in the underworld. That very night, he encountered an attack in his room. Two people quietly unlocked the door, but he had placed objects behind it, which fell and woke him up as the door opened.
