Eddie "Red" Collins was a friend of MickeyBlackNys, a fellow gambler from Vegas. Red was banished from Vegas for some reason (Mickey helped him skip town) and all his luck was taken from him. When they met up in NewOrleans, Eddie ratted Black out to FrankCairo and Mickey killed him.

Mickey was pretty torn up by this for a while (see his meditations on New Orleans here). MommaBeulay suggested to him later that maybe Red had wanted Black to kill him, and set things up so he would have to do him this one last favor (see their conversation here).