The Forgotten '80s Slasher He Knows You're Alone Will Have You Checking Your Surroundings  SlashFilm Mon, 10th August 2026

The 1989 movie that brought a nostalgic Tom Hanks to tears: “I cried like a baby”  Far Out Magazine Wed, 10th June 2026

Caitlin O’Heaney, Actress in ‘He Knows You’re Alone’ and ‘Tales of the Gold Monkey,’ Dies at 73  IMDb Sun, 31st May 2026

Tom Hanks Starred In A TV Movie Inspired By Dungeons & Dragons' 'Satanic Panic'  TVLine Tue, 25th August 2026

“HE KNOWS YOU’RE ALONE” STAR CAITLIN O’HEANEY DIES AGED 73  screamhorrormag.com Sat, 6th June 2026

Caitlin O’Heaney, Actress in ‘He Knows You’re Alone’ and ‘Tales of the Gold Monkey,’ Dies at 73  The Hollywood Reporter Sat, 30th May 2026