The Austin Police Department has identified the suspect in the triple homicide outside a North Austin Target as Ethan Nieneker.

Ethan Nieneker, 32, was arrested Monday in South Austin in the 2400 block of La Casa Drive, according to the Austin Police Department (APD). APD Chief Lisa Davis said the Nieneker has a history of mental health issues. Nienker drove away from the Target in a stolen car, then wrecked that car and stole another car, according to Davis.