re: The OG Nightstalker Caught 40 Years Later

He was living with his kid and his grandchild. I wonder if his kid had any inkling he was a notorious serial killer.

I suspect cops were led to him by a tip (they will not confirm that). The recent media coverage of his case (books, documentaries, etc.) might have led the killer to make a comment that made a family member suspicious enough to go to police. If true, this tip must have been rock solid because cops get tons of fake tips all the time in relation to high profile cases like this.