A manhunt is underway in Tennessee for Austin Robert Drummond, 29, who is suspected of killing four people in Tiptonville in a case linked to the discovery of an abandoned baby.

Nearly a dozen agencies are looking for a man investigators say killed four relatives of a Tennessee baby who was found abandoned alive this week in sweltering heat, authorities said Thursday.

On Saturday, authorities charged Giovonte Thomas, 29, and Tanaka Brown, 29, two men from Jackson, Tennessee, who were described as “associates” of Drummond, with accessory after the fact to first-degree murder in connection to the manhunt. Brown was charged with an additional count of tampering with evidence.