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.

Authorities had been searching for Austin Robert Drummond since July 29, when four people were found dead and an infant was abandoned in northwest Tennessee.

Austin Drummond, the suspect linked to a quadruple murder last week, has been arrested after a four-day manhunt, according to police in Tennessee. Reports of the abandoned infant in neighboring Dyer County on July 29 sparked a search for her guardians,