A D.C. Superior Court grand jury indicted an 18-year-old Northwest Washington man yesterday in the shooting death last April of a Georgetown University law student whose body lay in a Northwest parking lot for more than 12 hours after the first of several calls were made to the city's 911 emergency telephone number.

The student, Jan Alexander Stransky, 22, of Gladstone, N.J., was shot in the head and collapsed in a parking lot near 15th and P streets.

Police said he probably died immediately, but authorities did not discover the body until after noon on May 1. Two neighborhood residents called to report the shooting at 11:56 p.m. on April 30, police said.

Although a police cruiser was dispatched, officers found nothing, a police spokesman said.

After dawn, another call was placed to the 911 number, police said, and was transferred to the fire department for an ambulance but the body still was not found.

Later that morning, a parking lot attendant noticed what he thought was a person sleeping in the lot. The attendant, Samuel Richardson, then noticed that the person's eyes were slightly open and that the area around the man was littered with credit cards. Richardson's boss called police at 12:01 p.m. and homicide detectives arrived at 12:30 p.m., police said.

Nathan R. Hunter of 426 Florida Ave. NW was indicted on charges of first-degree murder, felony murder, armed robbery, first-degree murder while armed and carrying a concealed weapon. If convicted, he could face up to 40 years to life in prison.

Hunter was arrested nine days after the shooting after a witness told police he had seen Hunter force Stransky into the parking lot, ask him for money and shoot him, according to court records.