It's not really a euphemism, Charles Whitman was the first modern spree killer. An ex-marine and student at the University of Texas, he went on a shooting rampage which ended up on the 28th floor observation deck of the clock tower at the University. 16 were killed and 32 injured during the massacre on August 1 1966.
I don't really believe OlegL is a spree killer I just tease him with this historical (though morbid) fact.
I'm sure I've told you about about Charles Whitman before, it must be the alzheimers.
Interesting factoid 228a: During his autopsy it was discovered that Charles Whitman had an invasive lesion of the brain, a Glioblastoma. This was such as to affect both his emotions and judgement, so in his case the psychotic break was truly unfortunate.