Authorities warn he may be confused or disoriented, reinforcing the urgency of locating him quickly.

Mercury’s wife, Nicole La Guerre, has expressed ongoing concern for his safety and pleads for information from the public.

Authorities note that sightings and possible aliases are being shared across social media and local police channels.

Mercury’s need for urgent medical care and possible confusion are emphasized by officials.

Gardner and Westminster police have posted notices advising the public not to approach him and to call police immediately if spotted.

Anyone with information should call 911 or Dana Prestone of Rockwell Investigations at 781-231-7625.

There have been potential sightings in Worcester, including around Grafton Street, as of late November.

Public help is sought in locating Leonard John Mercury, a 57-year-old man from Gardner, Massachusetts who has been missing for more than three weeks.

An official alert has been issued for Mercury, who was last seen in Gardner and may be in the Worcester area. The public is urged to contact authorities with any information.

Mercury reportedly escaped Heywood Hospital in Gardner on October 31 by breaking a second-floor window and leaping to the ground, according to his wife.

Tips can be shared through the provided contacts, with Telegram staff writer Henry Schwan identified as the report source.

He is described as about 6 feet tall, 195 pounds, wearing hospital clothing and no shoes at the time, and in urgent need of medical care.