A 36-year-old man, an escapee from the federal penitentiary in Leavenworth, Kan., was shot and fatally wounded by a D.C. police officer yesterday moments after he held up a Northwest Washington bank with what turned out to be a toy gun, police reported.

The man, identified as Charles McNaney, died in surgery at George Washington Hospital at 3:10 p.m., a little more than two hours after being shot by first district motor scooter Officer Samuel J. Honablew on 12th Street between F and G streets.

According to police, the man walked into the McLachen National Bank at 1100 G St. NW at about 12:45 p.m. and gave a teller a note saying he had a gun and would shoot her if she did not turn her money over to him.

Bank manager Joseph Muse said he saw the teller handing the money over and called police.

By the time Honablew arrived on the scene the robber had fled. One of the bank customers pointed out a suspect and Honablew chased him from 11th and G streets to 12 and G streets and around the corner.

Police said that Honablew caught up with the suspect in front of Jak & Co., hairdressers, about 30 feet north of F Street.

When Honablew stopped the suspect he turned with a toy gun in his hands as if to shoot, police said. Honablew fired his 38 caliber service revolver once from almost point blank range, striking the suspect in the right abdoment.

The bank, which is open until 2 p.m. on Saturday, closed immediately leaving many customers knocking on windows demanding to get in.

Homicide detectives were interviewing witnesses late yesterday after taking Honablew's statement. The incident was the third this year in which a D.C. police officer has shot and killed a suspect.

Police said that in addition to escaping from Leavenworth, McNaney was wanted as a fugitive in New Jersey. They said his last known address was in New York.

Honablew was placed on routine administrative leave with pay pending a grand jury hearing.