Kyle Glover (son of Usher's estranged wife Tameka Foster) has not experienced any brain activity since he was admitted to the hospital. There has been no decision yet as to whether or not to take him off life support.
Sources say Usher arrived at the hospital Saturday night and Tameka has not left the hospital since she got there.
As TMZ first reported, Kyle was struck in the head by passing jet ski while riding on an inner tube on Lake Lanier in Atlanta, GA over the weekend.
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