A missing 88-year-old woman from Bath Beach was found dead Tuesday morning.

Authorities say Mary-Joyce Bonsignore was found around 11:45 a.m. unconscious and unresponsive on a rooftop at 1853 Cropsey Ave. EMS pronounced her dead at the scene.

Family members say Bonsignore, who had dementia, was last seen in front of her 19th Avenue home on the morning of July 17.

Police say they believe Bonsignore had been on the rooftop, located around the corner from her home, for the entirety of the time she was missing. Family members say they believe Bonsignore entered the building thinking it was her own and got locked on the roof.

News 12 is told that the building's superintendent discovered her body after complaints of swarming insects.

The medical examiner will work to determine the cause of death.

Funeral services for Bonsignore are scheduled to be held this Thursday and Friday, with a Mass Friday night at Saint Finbar Catholic Church on Bay 20th Street.