Please help! Oak Leaf Holly Zone 9

Located in zone 9, East Texas. This started about a month ago before the close to freezing temps happened. I had recently put down fertilizer and some humus but I did the same to my other Holly’s which are doing fine. My only guess is wind damage(although most of the dead stuff is on the backside of the plant) or reflecting light off my truck? East side of the house, I've had it planted here since 2020. Oakleaf Holly I believe.