The Department of Public Safety says that Trooper Chad Walker is not showing any signs of viable brain activity.
In a tweet sent out at 1:30 p.m. Monday, DPS says Trooper Walker is being kept on life support so he can give the gift of life as an organ donor.
Trooper Walker was shot Friday while responding to a disabled vehicle call about five miles outside Mexia.
The Texas Fallen Officer Foundation is accepting donations for the Walker family.
DeArthur Pinson, Jr. has been identified as the suspect who allegedly shot at Walker. DPS says Pinson, 36, was found dead at a residence on Highway 84, which is west of Mexia, Saturday evening with what police believe is a self-inflicted gunshot wound.