The Houston Chronicle reported Wednesday that recently obtained civil service records confirm the August dismissals of Joseph Jameson, Christopher Pool and Christopher Taylor.
A grand jury declined to indict anyone in the January 2011 death of 72-year-old Norman Ford Hicks Sr. Investigators say Hicks died of complications from a heart attack after suffering blunt head trauma and a broken nose.
Investigators have said Hicks caused a disturbance and threw a waste-soiled shirt on or near a jailer. A termination letter says Pool admitted he then slugged Hicks in the face.
Hicks was jailed for probation violation related to assault on a family member.