The U.S. Attorney’s Office says it will not file charges against two U.S. Secret Service agents who shot and killed a man outside the Peruvian ambassador’s home in April.

Uniformed Secret Service officers on April 20 responded to a burglary call that a man was trying to break into the residence. The Secret Service found 19-year-old Gordon Casey outside the home, which is located near Rock Creek Park in Van Ness, with a metal pole or stake.

The staff of the residence told police Casey was breaking windows and attempting to get in. According to the U.S. Attorney’s Office, Casey did not follow commands to drop the metal object and officers attempted to tase him, but it didn’t work. The report says Casey walked toward the officers swinging the object and the Secret Service officers shot him twice. He died at the scene.

Casey’s girlfriend said he was having a mental health crisis.

The Metropolitan Police Department was in charge of the investigation and looked at eyewitness accounts, physical evidence, radio communication, forensic reports, and the autopsy.

“After a careful, thorough, and independent review of the evidence, federal prosecutors have found insufficient evidence to prove beyond a reasonable doubt that the officers used excessive force under the circumstances,” the U.S. Attorney’s Office said in a news release.

In order for prosecutors to bring charges, they must prove that the involved officers “willfully used more force than was reasonably necessary,” according to the release. “Proving ‘wilfulness’ is a heavy burden. Prosecutors must not only prove that the force used was excessive but must also prove, beyond a reasonable doubt, that the officer acted with the deliberate and specific intent to do something the law forbids.”

The ambassador and his wife were home at the time, but no one inside the house was hurt.