A $15,000 reward has been offered for information that leads to the arrest of ta man accused of killing four people in Tennessee, who were identified as family members of an abandoned infant.

According to FOX 13, the Tennessee Bureau of Investigation (TBI) added $7,500, with the U.S. Marshals adding in an additional $7,500, for the arrest of 28-year-old Austin Robert Drummond.

As CrimeOnline previously reported, Drummond has been charged with four counts of first-degree murder, kidnapping, and related charges, according to a TBI news release.

“At this time, Drummond remains at large and should be considered armed and dangerous,” the TBI said.

On July 29, police found four bodies along Carrington Road in Tiptonville.

TBI identified the victims of the homicide as 15-year-old Braydon Williams, 21-year-old James Matthew Wilson, 20-year-old Adrianna Williams, and 38-year-old Cortney Rose.

Investigators said the victims were related to a 7-month-old girl found in a car seat in a front yard in Tigrett earlier in the day.

According to Facebook posts, Wilson and Adrianna Williams are the baby’s parents, Rose is Williams’ mother, and the teen is Williams’ brother.

Dyer County deputies quickly identified the child and announced they were looking for the parents and Rose. Hours later came the discovery of the bodies.

Authorities indicated that the killings were not random. A family member of the victims reportedly posted on Facebook that Drummond was “close to our family” and had previously dated Cortney Rose’s sister.

“Yes, he was close to our family. Yes, we cared about him and thought he cared about us,” the post read, in part.

“He has  literally been nothing short of amazing to us and our kids every time he has been around us up until this point. He has been amazing to our niece.  We NEVER expected him to cause ANY harm to ANYONE, much less anyone in our family.”

According to the Tennessee Department of Correction, Drummond has a criminal history, with convictions that include aggravated robbery and retaliation for past action. He spent 13 years behind bars and was released last year.

Meanwhile, TBI placed Drummond on the Tennessee Most Wanted list.

“Drummond is 5’10”, 190 lbs., brown hair, blue eyes & a goatee,” TBI said. “He’s believed to be driving a ’16 Audi A3 w/TN tag: RI 01896, with damage to the driver’s side.”

Anyone with information on his whereabouts should contact 731-415-7962, 731-333-0811, 1-800-TBI-FIND, or 911.

[Feature Photo via TBI]