As the weeklong manhunt for the suspect arrested in the killings of four relatives of a baby found abandoned in Tennessee came to an end on Tuesday, police revealed the suspect’s girlfriend is related to the victims.

Austin Robert Drummond was arrested Tuesday morning in the woods in Jackson after residents saw him. The 28-year-old is a convicted felon with alleged ties to a violent street gang who was out on bail on an attempted murder charge and dating one victim’s sister, officials have said.

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