I've been in a simular situation. You could of had someone put pressure on his neck. Besides, he had to of been close enough to stab him at some point. It's not like you'd of had to of gone far to get him, but I wasn't there, so there isn't much I can really say. Go handle your buizz Greg. Don't let the wanker bitch get away with it, and when you get his ass under you make him wish it hadn't missed his mark.