(LAS VEGAS, KXNT) - A third person is being charged in the attack on a driver on I-15 two months ago, first thought to be a road rage incident, but later alleged by police to be a murder plot.

Amy Bessey, 42, is being charged with attempted murder and conspiracy. She is the wife of  Robert Bessey, who was struck in the head by gunfire from a passing vehicle as he drove the freeway north of Las Vegas in mid-November.

After the incident, Bessey’s  brother in law and a 21 year old adopted son were apprehended. Police say they plotted to kill Bessey because he had filed divorce papers and his wife would no longer be a beneficiary of a $250,000 life insurance policy once the divorce had become finalized.