The Thriller routine that eight year old William Ryan performed on holiday with his family in St Ives. See Newsteam copy NTIDANCE: An eight-year-old autistic boy has gone viral after he was filmed dancing to the Michael Jackson Halloween hit 'Thriller' - on a seafront shop's WEBCAM. Little William Ryan entered the challenge on Wednesday (26/10) while he was on holiday with his family in St Ives, Cornwall. Incredible footage from the webcam shows the schoolboy stroll into view with the harbour behind him as other holidaymakers stroll across the pavement. He then bursts into the 'Thriller' routine while his mum Gemma, 34, stands to the side playing the Michael Jackson hit on her phone.