Actually, one doesn't "jump under a train." You "fall onto the tracks," so that your family can collect the insurance. Someone with Casey's troubles would almost certainly make sure to do that, maybe stumble a bit and ensure that people knew he looked like he was about to faint or pass out.

Then again, perhaps he was pissed (and not just from the beer in his belly) and doesn't want the bloody missus to get anything from his measly insurance! Probably should have changed the beneficiary to his bit-on-the-side, you know? But it's too late now -- he's lying on the track and the train is almost on him, brakes squealing and the horn blasting. Damn! I think this was a mistake!

Bob