The family of a teenage boy injured by a Dallas police horse at the Texas State Fair is speaking out, days after he was hospitalized with a brain injury. Esther Macharia, the mother of the 19-year-old Ian Macharia who was injured when an out-of-control Dallas Police horse knocked him off his feet,

A Dallas Mounted Officer was patrolling in the Big Tex circle when the horse became startled, the State Fair said.

A 17-year-old boy was injured when he was struck by a frightened Dallas police horse that also threw its rider, officials said.