USHER’S STEPSON INVESTIGATION INTO ACCIDENT UNDERWAY

The Department of Natural Resource in Atlanta is investigating the accident that left Kyle Glover, stepson of R&B star Usher in critical condition ... an investigation which could take months to complete.  As TMZ first reported, the 11-year-old was struck in the head by a jet ski while riding in an inner tube on Lake Lanier. He was rushed to a nearby hospital and remains there in critical condition.