A 19-year-old man was found dead, apparently of a self-inflicted gunshot wound, near Brandywine yesterday after law enforcement officers were lead on a high-speed chase along Rtes. 5 and 301 across the Prince George's-Charles County border, the Charles County sheriff's department reported.

Sheriffs identified the man as William Patrick Boone, who lived in Waldorf but at no fixed address. He was pronounced dead at the scene on Brandywine Road.

Charles County sheriff's department spokesman Sgt. Casey McDevitt said the chase began after officers came to the St. Charles home of George Reed to investigate a complaint that an intruder was hacking down the front door with an ax.

McDevitt said Boone's ex-wife is the daughter of George Reed and was believed to be living at the house.

By the time officers arrived, McDevitt said, the ax-wielder had fled the scene in a blue 1984 Ford Tempo. Prince George's County police joined the chase after the vehicle was spotted near Waldorf and then crossed the county line.

The 10-minute chase that followed took the driver, officers and deputies north on Rte. 301 to Surratts Road near Southern Maryland Hospital and then south again.

Police said that gunshots were exchanged between the driver and the officers at Earnshaw Drive and Branch Avenue, but that no one was injured. Minutes later, however, the driver turned onto Brandywine Road, pulled over to the side of the road and shot himself in the head, police said.

McDevitt said Boone had been arrested Sunday on a trespassing charge at the Reed residence.