“Hip-hop mogul Chris Lighty died Thursday morning after he shot himself during an argument with his ex-wife inside his Bronx apartment, sources told the Daily News. Lighty, 44 — a longtime manager of 50 Cent, Diddy, Ja Rule and Mariah Carey — put a gun to his head and fired after a spat with his former wife, Veronica, inside the South Riverdale apartment about 11:30 a.m., police sources said.  Law enforcement sources said Lighty — who divorced his wife last year — may have been dealing with financial struggles, including owing about $5 million to the IRS. Lighty, founder of Violator Management, merged with another talent company to form Primary Violator around the time his divorce.” (NYDAILYNEWS)