The FBI has already decided to avoid a Muslim terrorist connection.
This killing spree only happened a few days ago. The FBI hasn't had time to go through all his cell phone or home phone records. Or to see if he had a computer.
Then the FBI would go and interview everyone he talked too, or worked with, or whose Telephone number he had.
This would take at best weeks to come to a conclusion about whether he acted alone or for whatever reason.
But they have reached a conclusion in a few days. Ridiculous. - tom
It's possible that the first two people that they spoke with said that he was a nut who had been in a mental hospital 3 times.
The FBI pulled that crap with the Muslim Arab w2ho shot up and killed a woman at LAX. The FBI denied a terrorist connection for six months.