UPDATE: Doctors Declare Usher's Stepson Brain DeadMon, Jul 09, 2012
A source tells TMZ that Kyle has not experienced any brain activity since he was admitted to the hospital. Currently on life support, there has been no decision whether or not to take him off.
The same source reports that Usher visited his stepson on Saturday night, while ex-wife Tameka Foster has been by his bedside since his arrival.
As previously reported, Kyle was hit in the head by a passing jetski while riding on an inner tube. In addition, a 15-year-old girl was also injured.
Our prayers to Kyle and his family.