Crego (Charles Bronson) is not so much a gunman as he is a serial killer, which is made pretty apparent in a poorly acted opening scene. He either kills by stealth or by goading less skilled gunmen into drawing contests they can't win. In short, the guy's a real menace
Bronson's role here requires he go through several mood changes that show-- all in all-- why he needed to stick to the deadpan squinty-eyed parts that became his trademark. He's simply not good at sniveling or grinning. What is notable here is how Dillon deals with the threat. If he waits to catch him in a crime, no telling how many more Crego will kill. Thus, the law is working against the public good, which makes for an interesting dilemma that Matt must work through. Consider how he does deal with it and whether his solution successfully solves the moral conundrum. Also noteworthy-- the staging of this episode strikes me as unusually poor, particularly the scene with Matt and Chester at the saloon doorway. Their close-up emphasizes the phony cardboard backdrop of Front Street, which is peripherally visible in most episodes where interiors were filmed on a sound stage. But rarely did filming make this cost-cutter so obvious.