One report on the horrific shooting yesterday in Binghamton, New York, says that the shooter may have lost his job at IBM.. Another says he was angry over poor English skills..

The third theory comes directly from the Taliban in Pakistan! Pakistani Taliban militant leader Baituallah Mehsud today claimed responsibility!

MORE..Experts have dismissed the Taliban claim thus far as outlandish .. The Taliban statement said the shooting said that it was revenge for US drone attacks in Pakistan..

UDPATE: FBI RULES OUT TALIBAN