A man was shot to death yesterday across the street from Meyer Elementary School in Northwest Washington minutes before children were set to go home for the day.

The shots were heard by office workers in the school, which has about 700 students from pre-kindergarten to the sixth grade.

"We told them {the students} there was an emergency, and we told them we were going to delay dismissal. And that was it," said the school's principal, Barbara Lyles.

Police identified the victim as Curtis Marshall, of the 700 block of Girard Street NW.

The shooting occurred just before 3 p.m. on the 2500 block of 11th Street NW, directly across the street from the elementary school and around the corner from Cardozo High School. Police said the victim was hit by several shots.

It was the fourth homicide in the District during a 24-hour period beginning at 3 p.m. Thursday. Marshall's death brings the District's homicide total for the year to 170, according to police statistics.

Investigators searched for fingerprints on a blue Ford Escort with Maryland plates parked near where the body was found.

After the children were released, police sealed off the street to traffic. At least two witnesses were taken to police headquarters for questioning.

At 3:30 a.m. yesterday, a 30-year-old man was found stabbed to death on the 1100 block of I Street SE. The victim, identified as Willie Buckmon, of the 500 block of 14th Street SE, was pronounced dead at the Medical Examiner's Office at 6 a.m.

On Thursday, Quintin D. Williams was found about 3 p.m. in the 3300 block of C Street SE suffering from gunshot wounds, police said.

Williams, 25, of Glenarden, was taken to D.C. General Hospital, where he was pronounced dead shortly after 6 p.m.

About 9 p.m. Thursday, an Annapolis man apparently involved in an argument was shot several times, police said.

The body of Pyzon Wade, 19, was found in a parking lot in the 400 block of Condon Terrace SE.

Police said the deaths of Buckmon and Williams appear to be drug-related.

No suspects were arrested in any of the slayings, police said.