Man accused of knife threat on flight in Utah jail

By the Associated Press | September 23, 2011 | 11:30 AM EDT

SALT LAKE CITY (AP) — A Utah man has been ordered to stay in jail over allegations he smuggled a knife onto a plane and threatened to slit the throat of his seatmate during a tussle over a shared armrest.

A federal judge in on Thursday also ordered 60-year-old David Alan Anderson to undergo a mental health evaluation.

Anderson is charged with possessing a dangerous weapon on an aircraft and retaliation against a federal officer by threat of murder.

Authorities say was removed from a plane in Salt Lake City before it left for Las Vegas on Sunday after he threatened to kill a passenger.

Officers found a knife in his bag and say he then threatened to kill law enforcement officials.

Anderson told the judge he had run out of his anti-anxiety prescription.