Robert Vincent Black was 64 when he disappeared from Los Angeles on March 12, 1996. He was last seen leaving his residence en route to a doctor’s appointment and never returned. Black is described as 6 feet 1 inch, 170 pounds, with gray hair, brown eyes and eyeglasses. At the time he went missing he was reported to be depressed about the state of his health.

Investigators have noted a possible link to three other patients of the same physician: Patricia Laxer (missing August 11, 1997), Goldie A. Swanger (missing August 29, 1997) and Richard Dean Davison (last seen October 29, 1997). All four disappeared either on their way to or after returning from appointments with that doctor. Goldie Swanger was found in 2004; Robert Black, Patricia Laxer and Richard Davison remain unsolved. Authorities have also considered that Black may be a patient in a hospital or nursing home. The Los Angeles Police Department is the investigating agency.

If anyone knew Robert Black, his routines, or has information about his visits to that physician, please share what is known.