Police believe Robert Becker plotted to kill a high school teacher at a busy intersection before turning the gun on himself.
Just before 3:30 p.m. Tuesday at the intersection of Billingsley and Middletown roads, a man got out of one car, approached another car and fired several shots into the car before shooting himself, sheriff's office spokeswoman Diane Richardson said.
The gunman, 22-year-old Robert Becker, was pronounced dead at the scene, authorities said. The man driving the other car, 24-year-old Christopher Hoefert, was struck at least twice and flown to Prince George's Hospital Center, where he was pronounced dead.
The shooting was not road rage, according to Richardson, nor was it random. The men knew each other, police said, and investigators are looking into the possibility that Becker shot Hoefert because of an auto theft investigation involving both men. According to court documents, Hoefert confessed to helping Becker move a stolen car.
Hoefert was a second-year technology education teacher and robotics coach at North Point High School in Waldorf. The school said it would have grief counselors on hand Wednesday to help staff and students cope with the tragedy.