NOVEMBER 20--An ex-con who now fashions himself a rapper has been arrested for threatening President Barack Obama’s life in a recorded message left at a Secret Service office, court records show.

Koryell Lamontae Williams, 28, was named in a felony complaint filed yesterday in U.S. District Court in Greensboro, North Carolina.

Williams was apprehended Friday at his grandmother’s home in Winston-Salem, where he sought to evade investigators by fleeing out a side door.

According to the complaint, Williams (pictured at right) last month placed a late night call to the Secret Service office in Charlotte and stated, “we will kill that mother fucker Barack Obama that mother fucker…” Strangely, the complaint--sworn by Agent Carter N. Catlett III--spells the president’s first name “Barak.”

A subsequent Secret Service probe linked the call to a cell phone used by Williams, whose rap sheet includes a 2002 armed robbery conviction (for which he spent about a year in state custody). Prior to his felony collar last week, Williams was last arrested in late-September for disorderly conduct.

Investigators tracked Williams’s cell phone to the home of his grandmother, Lula Mae Edwards, who denied that her grandson was at the residence. A Secret Service agent then asked Edwards to call Williams on his cell phone and request he return to the home.

After Edwards complied and dialed her grandson’s number, Agent Catlett “heard the vibrations of a telephone ringing in the next room.” Upon entering the adjoining room, Catlett spotted Williams going out a side door. Williams, who was then apprehended, “became irate and threatened to kill” his grandmother, according to the complaint.

Williams appeared yesterday in federal court, where prosecutors asked a magistrate judge to order him held in advance of trial.

According to his Facebook page, Williams is a rapper who spent time last year “on tour and promoting” his album “Salvation.” The album--available on iTunes for $7.92--includes songs like “Cookie Crack,” “Putty Tat,” and “Powerball,” an ode to the lottery. The crude “Powerball” video shows Williams and two cohorts gesticulating in front of a plane and Williams posing near a small boat. He does not appear to own either means of transportation.

In September 2010, Williams incorporated Confident Independence Corp., which appears to be his music promotions business. In an August Facebook post, Williams solicited investment funds, promising, “BECOME A FULL PARTNER AND RECIEVE TOP PAY PERCENTAGES…” (3 pages)