Police said that Applebaum was last seen at 9:50 a.m. and was leaving his home.
A description of his car, according to police, is of a green Volvo with a Temple University windshield sticker. Police noted that the vehicle's license plate is #Z524CL.
Police encourage folks with information to call 914-273-9500.
Click here to follow Daily Voice Armonk and receive free news updates.