Cops found Lighty, 44, the founder and chief of Violator Management, lying faceup on the basement patio in a pool of blood with a 9-mm. pistol at his side, the sources said.

The shocking suicide followed a wild spat between Lighty and his 36-year-old wife, Veronica, who filed for divorce last year. Moving trucks were at the home, as the veteran music manager prepared to move out of the three-story townhouse, sources said.

Law enforcement sources said Lighty’s wife of seven years told police he was facing financial woes that include a $5 million debt to the IRS. However, the Associated Press reported that Lighty paid off most of what he owed by selling a Manhattan apartment for $5.6 million in October.

Lighty still owed more than $330,000 in state and federal taxes, the AP reported. And in April, he was sued by City National Bank for not paying them after he had overdrawn his account by $53,584.

His 17-year-old daughter and 5-year-old son were inside the W. 232nd St. home and left when the argument erupted. They were in a park nearby when Lighty, who has three other children, stepped outside and shot himself, sources said.