Put the Doggies Down!
OK, let me get this straight.. this huge, mean, rampaging beast capable of EASILY tearing humans into bits and pieces without a second thought goes down from a single shot from a 9mm loaded with lead?
...what the hell?
To be honest, even if silver wasn't needed to kill the thing, you'd suspect it'd take a LOT more than that. Esp. since not long after one is hit by a train, and it doesn't even do more than stun it for a few seconds (if that).
Just a huge WTFH? to ask.