1995 Jeep Wrangler seat belts problems

Please add VIN. Consumer's son was driving approximately 30-35MPH when leaving a four-way stop at approximately 100yards while still in third gear, vehicle flipped over. The top of jeep grazed a pole and the roll bar broke. Also the seat belts were shreaded, and broken loose. The driver was killed.

Dt*: the contact stated that the front driver side seat belt buckle failed to stay latched. During the failure, the vehicle was not in motion. The buckle would fit in the latch but would not click. The dealership was contacted and denied to repair the defect without charging for the repair. The contact expressed that a broken spring in the seatbelt latch may be the problem.