DC Adrien Collins was a police officer who worked with Angie Reynolds. He died when he and Angie's car crashed whilst in pursuit of Cain Dingle.
Collins made a pass at Angie, who reacted by throwing coffee on him. He made her life miserable, spreading rumors about her and Cain and filing for assault.
Angie planned to get Cain Dingle arrested in revenge for causing havoc on her family. Collins agreed to help her but when in pursuit of Cain, the car careered off the road and flipped up the side of a hill, resulting in the deaths of Collins and Angie.