The ex-girlfriend, Supriya Harris, filed a complaint with the Las Vegas police last month claiming that Jackson took her to the hospital afterward and asked that she tell medical officials she slipped in the shower. The couple had a healthy baby boy a few days later.

"Our investigation is complete," said the spokeswoman. "I don't think the time passage was a factor here. We contacted the victim, the accused and witnesses. There's insufficient evidence to go forward with the case."