Officer involved in Tyre Nichols arrest previously accused in assault of prison inmate

Demetrius Haley allegedly took part in a 2015 incident at a county prison that resulted in an entire cellblock writing a letter to the corrections director

Years before Memphis police officer Demetrius Haley pulled Tyre Nichols from his car on 7 January, setting in motion a deadly confrontation, Haley was accused of taking part in the savage beating of an inmate at a county prison.

The 2015 assault of the inmate was so disturbing that 34 others - the entire cellblock - signed a letter to the corrections director.