Name: Leonard John Mercury
Nicknames: Leo, Shadow
Age: 57 years old
Last Seen: October 31, 2025
Location: Gardner, Massachusetts
Status: Found deceased on March 25, 2026
Case Information
57 year old Leonard Mercury was last seen in Gardner, Massachusetts on October 31, 2025. He disappeared after escaping from Heywood Hospital where he had been placed under a psychiatric hold.
Disappearance
At approximately 2:00 am on October 31, 2025, Leonard Mercury broke out of Heywood Hospital in Gardner, Massachusetts.
Mercury had been taken to the hospital the night before following an argument with his wife, and was placed under a psychiatric hold.
Leonard broke through a window hospital, climbed out onto the roof, and jumped from the second floor before fleeing into the woods by a nearby bike path.
He was wearing light blue scrubs with no shoes, and did not have any of his personal belongings with him. He hasn’t been seen or heard from since.
Leonard is in need of serious medical attention and may be disoriented. Authorities say he may be using the name Leonard Cummins or John Cummins.
Investigation
There have been no confirmed sightings of Leonard since he entered the woods, nor has there been any financial activity on his accounts.
Multiple searches of the area have been conductedm with K9s tracking his scent to a nearby lake, but searches of the water produced no further evidence.
A week after he disappeared his wife hired a private investigator to help with the case. The investigator chased down several leads, including possible sightings of Leonard at Stop & Shop and Ollie’s Bargain Outlet in Worcester.
One witness claims to have seen a man matching his description asking for money and living in the woods.
Leonard Mercury Found Deceased
On Marc 25, 2026, Leonard Mercury’s body was recovered from Crystal Lake in Gardner, Massachusetts. No further details have been released at this time.
Appearance
Black male with salt and pepper balding hair and brown eyes. Leonard stands 6’0 tall and weighs 195 pounds. He had a full beard at the time of his disappearance.
Clothing & Accessories:
Leonard was last seen wearing light blue scrub pants and a shirt.
Investigating Agency
If you have any information regarding the location of Leonard Mercury please contact the Gardner Police Department at (978) 632-5600.
Agency case number 25GAR-2236-OF
Resources & Further Information
Leonard John Mercury – NamUs
Wife Marks 1 Month of Leonard Mercury’s Disappearance: ‘He’s Out There Somewhere’ – MassLive
Man Still Missing 3 Weeks After Escaping Gardner Hospital – Boston
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