Man assaults jogger, discovers she's a Deputy U.S. Marshal

PITTSBURGH, Pa.-- A man allegedly grabbed a jogger's buttocks and pulled down her shorts Tuesday, and then found out she was an off-duty Deputy U.S. Marshal, reports CBS Pittsburgh.

The victim was jogging in Pittsburgh, Pa., when police say 19-year-old Robert Flynn assaulted her.

The woman said she had seen Flynn standing along the trail and when she passed him, he began running behind her.

After allegedly attacking her, Flynn took off running, pursued by the victim, reports the station.

The victim yelled, "Federal marshal, stop."

She caught up with Flynn a few blocks away, cornered him, and when he resisted, kicked him in the crotch.

Police say when Flynn was asked for his side of the story, he said, "I plead the Fifth."

The U.S. Marshal is 5-feet-5-inches tall and weighs 150 pounds, while Flynn is 6-feet-4-inches tall and weighs 210 pounds.

Police say the victim injured her pinky finger in the struggle.

Investigators also believe Flynn was involved in another incident earlier Tuesday, in which a woman reported that a young white male lifted up her skirt and ran off.

Flynn is in Allegheny County Jail on $500,000 cash bond. He is facing charges including aggravated assault, indecent assault and escape.