In My Bloody Valentine, How did Jensen become the mass murderer?

On the DVD commentary, the director/writer and writer discuss this. They said when Harry Ward was shot standing over Tom Hanniger, his insanity was passed through the blood that splattered on Tom's face.

I certainly wouldn't have figured that one out on my own! I thought the cuckoo look on his face was shock brought on by the combination of being responsible for many deaths and being nearly killed himself. It didn't help that he had just been abandoned by his so called friends while being chased by a pick-axe, thus providing motive for the victims he picked, I suppose.

In addition, there was a deleted scene that showed his father as terribly unforgiving of the fatal mistake he had made, as was the town. Poor guy. In that climate, I would've left, too. Of course, when he came back, he was wrong for running away!

They didn't say if he came back looking for vengence or if he lost his mind during his enforced visit. Of course, with Jensen being first rate at what he does, I will give Tom the benefit of the doubt every time.

Psychologically Tom was way out of whack. Can you imagine having your life threatened? There was just too much emotional trauma for Tom Hanniger to stay the way that he was before the attack.

JESEN WAS THE KILLER ALL ALONG

I dont believe Tom was the killer. Not one bit. How the fuck do you lock yourself in a cage and manage to jam it. I find that incredibly diffucult to do.