Once Lisa's parents identified the man in the photo as Knuckles, and told Will his whereabouts, why didn't Will immediately inform Detective Paterson? Or, why didn't Will do that after he forced Knuckles to tell about Frank? Will's attempt to rescue his wife without any backup could have cost Lisa's life (if she was held near the building Will unintentionally destroyed), or resulted in his arrest by the cop who stopped him or his death by Frank's gang members.

That was really stupid how Will found Lisa. The police was at the scene, so after the fire was put out, how come it never occurred to Detective Paterson to search all the surrounding buildings?!