Two men were shot to death in unrelated incidents in the District yesterday, police said, bringing the number of homicides in the city this year to 467. In a third incident, a security guard was shot and wounded during a robbery at a drugstore in Northwest.

In the most recent of the killings, police were summoned about 10 p.m. to the 100 block of Todd Place NE, where they found an unidentified young man shot dead in the back seat of an old station wagon.

The rear left passenger window of the car, which bore temporary D.C. tags, was shattered. Police spent more than an hour photographing the scene, searching for bullets and dusting for fingerprints before removing the victim on a stretcher.

Neighbors joked and laughed with each other from the porches of their row houses, seemingly undisturbed by the grisly scene. Several older people sat on their porches in their bathrobes and bed slippers, and one woman drank a cup of tea as she surveyed the street.

"They find bodies here all the time," said a 35-year-old resident, who asked not to be identified. "They've found them in the dumpsters, they've found them in the street."

Two years ago, he said, a man was found shot dead and slumped over the steering wheel of a car parked where the station wagon was last night.

About six hours earlier, police found Andre Alston, 25, of Fort Washington, lying dead in front of a row house on the 800 block of Barnaby Street SE about 4 p.m. No other information on that slaying was immediately available.

In a third violent incident last night, an unarmed security guard at a Peoples Drug Store in Northwest was shot in the arm by a man who robbed the store, police said.

The holdup occurred about 8:30 p.m. at the store at 14th Street and Park Road NW, police said. The robber took an undetermined amount of money from a cash register, then shot the guard when he tried to stop him, police said.

The guard, whose name was not released, was in stable condition last night at Howard University Hospital.

Staff writer Ruben Castaneda contributed to this report.