"48 HOURS" SATURDAY DOUBLE FEATURE

Mike and Denise Williams; Maria Spencer

9:00 PM, ET/PT 48 HOURS: "Cold-Blooded Killer" - 48 HOURS and Richard Schlesinger have the latest twist in the strange case of a missing duck hunter, Mike Williams, in Florida, said to have been eaten by alligators nearly two decades ago, and the investigation that led police to those who allegedly knew what happened. 48 HOURS was there for the trial and the stunning conclusion of the bizarre story in an encore of "Cold-Blooded Killer" to be broadcast Saturday, June 20 (9:00 PM ET/PT) on the CBS Television Network. It's a case that tests the imagination of man over reptile, tests human relationships, and tests the will of a mother who never gave up hope of finding her lost son.

10:00 PM ET/PT 48 HOURS: "Maria Spencer's Vow to Kill" - Correspondent Peter Van Sant and 48 HOURS investigate the murder of a Pennsylvania man shot dead after a bitter divorce, arsons at his mother's home and his girlfriend's home, and countless threats of harm, in an encore of "Maria Spencer's Vow to Kill" to be broadcast Saturday, June 20 (10:00 PM, ET/PT) on the CBS Television Network. Frank Spencer, a beloved businessman, was found dead in July 2012. He was shot twice. It is a tale of a bitter divorce, a battling couple and a victim who foretold his own murder in conversations with friends. The case also raises questions about the responsibility of law enforcement when someone repeatedly reports being victimized and threatened.

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