After an intensive weeklong manhunt that captivated the rural communities of Tennessee, authorities have successfully apprehended Austin Robert Drummond, the 28-year-old suspect in the killings of four relatives of a baby found abandoned last week.

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.