Ja Rule was locked up for the past 2 years on illegal gun charges. He was released Thursday, but his troubles aren't over because he could be ready to serve more jail time. Ja is headed into federal custody in a tax case. Ja Rule may have less than six months left and may be eligible for a halfway house, according to his defense attorney Stacey Richman. She even said his back taxes are why he wants to get back to work...to pay them off.