Originally Posted by S7ilver
I think Xavier would've been able to sense Scott if he was still alive plus he even said it to Jean's face that she murdered him, I'd hope he'd be sure about it especially when he's telling a woman, who's on the verge of insanity, that she killed her fiance, either that or the Prof is an idiot..
Considering that he never bothered to check or there was no footage of that, and all the other mistakes he made, I think it's a safe bet he was an idiot. They didn't even bother looking for him for crying out loud! Logan ASSUMED he was dead and the others believed it too. And that's what they fed Jean. They didn't ask her really "what happened to Scott?". Instead they said "You killed him, didn't you?" Which only helped to make her more agitated.
Oh, also, Xavier can't really sense people if they're unconcious or in a coma. Not unless he's there to put his hands on them or use Cerebro. And we know in X3 they didn't have Cerebro.