I'll Be Gone in the Dark, HBO's limited series about the late crime writer Michelle McNamara and her journey to bring the serial killer and rapist she called the Golden State Killer to justice, airs this Sunday.
The episode picks up with the apprehension of the killer, Joseph James DeAngelo, who pleaded guilty to 13 murders on June 29, the day after the limited series premiered.
The finale goes deeper into who DeAngelo is, with interviews with his family members and people who knew him. One of the people interviewed is Bonnie Colwell, who was engaged to DeAngelo in 1970 but broke off the relationship due to discomfort with DeAngelo's impulsive and controlling behavior.
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