A shocking murder and stunning case. Go inside the mystery and investigation. 20/20 “First Comes Love, Then Comes Murder” ...

A web of lies, betrayal, cold-blooded murder and the secret recording never heard until now. The all-new 20/20 “They Know Everything" airs Friday, June 20th at 9/8c on ABC Network. Stream on Hulu.

Nathan Carman died in jail in 2023 before standing trial on allegations he killed his grandfather and mother — both Connecticut residents — in an alleged plot to inherit millions of dollars, leaving ...