U.S. marshals are looking for a man with a long rap sheet who's now accused of robbing a Waldorf gas station at gunpoint.

Police say 26-year-old Wayne "Elliott" Hilliard II and another suspect walked into the station and accosted an employee with a gun. A struggle ensued, and the suspects grabbed the cash and fled on foot.

Hilliard is also wanted in Charles County for armed robbery, and has two warrants out on him in Montgomery County for violating the conditions of his probation for a larceny and a drug conviction.

Matt Burke, supervisory inspector for the Capital Area Regional Fugitive Task Force, said Hilliard is growing increasingly dangerous over a much broader region.

"It appears he is becoming more violent and a greater threat to the community," Burke said. "Now he's committing violent offenses, while armed with a gun."

Hilliard's record includes assault, theft, drug possession and probation violations in Montgomery, Prince George's and Charles counties.

Hilliard has ties to Lexington Park but lived most recently in Silver Spring and Waldorf.

Hilliard can be identified by a distinctive gap in his teeth and tattoos on his right arm and shoulder, authorities said. He is 6 feet tall and 150 pounds.

Anyone with information should contact the U.S. Marshals Fugitive Task Force at 301-489-1717.

Since 2008, federal authorities have credited readers of The Washington Examiner with the capture of 43 fugitives, including murderers, kidnappers, child sex offenders, rapists and scam artists. At least eight captured fugitives were convicted killers or wanted on a homicide charge.

Two weeks ago, readers' tips led to the arrest of a one-eyed fugitive sought by D.C. and Maryland authorities for violating the terms of his parole and probation in separate drug-dealing convictions.

The U.S. Marshals Service's Capital Area Regional Fugitive Task Force includes 30 federal, state and local agencies from Baltimore to Norfolk. The unit has captured more than 33,000 fugitives since its creation in 2004.