Jonathan Daniel Fowler was 33 when he was last seen in Picton, Ontario, on July 24, 2019. He had ties to several eastern Ontario communities — Picton, Napanee, Kingston and the Denbigh area — and was known to use multiple names, including Jon Fowler, Joshua MacDonald, Johnny Boy, Daniel and the surname Shewan. Those aliases have complicated efforts to trace him.

Fowler is about six feet two inches, slim to average build, with brown hair (often buzzed or shaved), hazel eyes, fair complexion, sometimes a mustache and multiple tattoos on his arms and chest, with at least one reported on his wrist. After his disappearance there was reportedly no confirmed banking, telephone or social-media activity. Police have said Fowler led a risky lifestyle around the time he vanished, but have not released a detailed timeline or identified anyone responsible.

The OPP Criminal Investigation Branch and the Prince Edward County OPP Crime Unit took over the inquiry. In 2025 the Government of Ontario offered a $50,000 reward for information leading to an arrest and conviction; the appeal was renewed in 2026. No arrest or confirmed location has been announced. Does anyone who knew Jonathan or saw him in eastern Ontario around July 2019 have information that could help?