Charles Whitman-brain tumor the cause?

I know he had a small brain tumor when they did his autopsy, but does anyone really think that was the cause of his actions? I can see some truth to it, but I think mostly he planned this on his own.

I believe there is a thread on this in the other crimes section. Since this is not about Columbine this should go there as well.

Whitman's autopsy showed that he a small brain tumor in the part that controls emotional responses.

From here there were two different findings.

One report says that the tumor was malignant and would have killed him within a year, and contributed to his complete loss of control.

But another report released prior to that one says that the tumor was benign and could not have caused any pain.

An autopsy showed that Whitman had a pecan-size brain tumor, or astrocytoma, in the hypothalamus region, but Pathologist Coleman de Chenar said that it was "certainly not the cause of the headaches" and "could not have had any influence on his psychic behavior."

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Didn't they remove his brain and display it in a lab or something like that?

I am not sure.

Never heard that before.