Garvey is a pallbearer at Singleton's funeral, and Liz witnesses the whole thing. It's unbelievable that Singleton's murderer would have the gall to do that, but Garvey is a bastard and has no morals.
Did you hear me? I said I need his new name. Give it to me or I'll have the Miami Field Office tear your practice apart faster than you can say tummy tuck.