It happened shortly before 4 p.m. Thursday, in the 4400 block of 23rd Parkway.

Cpl. Mike Rodriguez said the 5-year-old had the handgun when it discharged and struck the younger boy in the back. The 5-year-old ran away and stashed the gun, police said. The 4-year-old was taken to the hospital and was expected to live.

Police recovered the weapon, are trying to determine how the 5-year-old got his hands on the weapon and who had custody of the 5-year-old at the time of the shooting.

Security worker charged with fraud

A former United Nations and National Labor Relations Board employee is charged with fraudulently obtaining more than $100,000 in salary payments from the two agencies.

Jeffrey K. Armstrong, 51, of South Riding, Va., was indicted in federal court in Alexandria on nine counts of wire fraud. He allegedly defrauded the two organizations by holding positions at both at the same time between April and September 2009 and lying to avoid disclosing that.

The indictment says he dissuaded NLRB personnel from contacting his U.N. supervisor, provided inaccurate employment forms and submitted fake medical leave information to the United Nations that said he was undergoing treatment. He received about $100,000 in salary payments from the two organizations through fraud, prosecutors said.

Man killed in McLean motorcycle crash

A Hyattsville man was killed when his motorcycle hit a car head-on in McLean.

Fairfax County police said a 2001 Mercedes-Benz driving west on Georgetown Pike near Centrillion Drive crossed the center of the road and struck 58-year-old Brian Benson’s 1998 Triumph motorcycle head-on at about 11 p.m. Wednesday.

The Mercedes driver, 30-year-old Gabriel Arevalo-Melendez, of Sterling, has been charged with reckless driving.

– Emily Babay and Scott McCabe