Never Seen Again

Jon Riley - Help Me Find My Brother (2x10)

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Jon Riley loves sailing, rock climbing and the great outdoors. But when he goes missing and a human foot washes up in a nearby lake, his family fears the worst. Only, it's not Jon's. A serial killer is on the prowl and police contact Jon's family about a scar on his shoulder. But none of the remains are Jon. So where is he?