Police say the man facing charges that he killed the parents, grandmother and uncle of an infant found left in a western Tennessee yard last week has been arrested.

At the news conference Tuesday, Tennessee Bureau of Investigation Director David Rausch said the suspect’s girlfriend was related to the victims. Goodman later confirmed to CNN Drummond’s girlfriend and Rose were sisters.

A manhunt for the suspect in the Tennessee kidnappings and killings of four people, including three from the same family, ended Tuesday, police said.