WACO, Texas (KWTX) - A fourth suspect in the sexual assault of a McLennan County Jail inmate who bonded out during the county's investigation of the Oct. 4 incident remains at large.

McLennan County Sheriff's Office Chief Deputy Jake Burson declined Friday to release the name of the wanted fugitive but confirmed Friday that he still is not in custody.

Three other jail inmates have been charged in the assault, including Davante Trevon Hicks, 22, Joseph Morgan Ivy, 24, and Sirdale Marcus McNelton, 31.