DURANT, Okla. -- Bryan County authorities are investigating why Bobby Don Mullinix, who is being charged with the murder of Tristan Ace York, was released from the Bryan County Jail.

Mullinix was freed on bond May 23rd after he was arrested on a fugitive warrant issued out of Texas May 22nd. Oklahoma court records show Mullinix was convicted of rape in March.

Bryan County Sheriff Bill Sturch says the jail never received information about that sentence and allowed him to post bond for the fugitive charge.

U.S. Marshals arrested Mullinix and two others who authorities say are connected to the murder of Tristan Ace York earlier this week.

Oklahoma State Bureau of Investigation officials say Tristan Ace York was stabbed, beaten, and shot with a small caliber pistol, and now authorities say they arrested the people responsible.

Authorities say they became interested in Mullinix and two other people in connection with the case they're calling murder.

Durant police say 27-year-old Tristan Ace York was killed in Durant at a home on Meadowlark Lane, and then his body was dumped in Lake Texoma before it was discovered May 21st.

Oklahoma investigators followed up on leads that the suspects were near Fort Worth and asked the U.S. Marshals to help with the arrest.

Marshals say the suspects had been in Mineral Wells for three days staying at a friend’s house.

Mullinix, Charles Shannon Bussey, and Linda Gayle Haworth were booked into the Palo Pinto County Jail and were being interviewed on Monday

Mullinix and Bussey are being charged with first-degree murder and Haworth is accused of being an accessory after the fact.

Investigators say Bussey and Haworth live in Durant, Oklahoma, and York was staying with them after being released from the Bryan County, Oklahoma, jail where he was being held on drug charges.

Officials say Bussey and Haworth were Tristan York's roommates.