The prime suspect in the "cold-blooded assassination" of a Texas sheriff's deputy was charged with murder Saturday, a day after the officer was gunned down from behind and shot multiple times at close range allegedly because he was a policeman, AFP reports.

The fatal shooting prompted an emotional reaction from local officials, who pointed their finger at ramped-up rhetoric against police officers in the United States in protests against perceived police brutality.

Shannon Miles, a 30-year-old black male with a long criminal history, was charged with capital murder.