Dr. Marc J. Horwitz beloved husband of Joan C. Horwitz (nee Drucker). Loving father of Margo (David Fishman and the late Dr. Martin Apple) Apple , Dr. Steven (Nicole Marshall) Horwitz and the late Jed Howitz. Devoted grandfather of Madeline and Max Apple, Olive and Sam Horwitz. Dear brother of Roger Horwitz. Graveside services will be held Wednesday, March 29 at 11 AM at the Mt. Olive Cemetery. Family will receive friends at the residence of Jill and Ed Schwartz, 34900 Forest Lane, Solon, OH FOLLOWING SERVICES UNTIL 3 PM. Friends who wish may contribute to the Cleveland Psychoanalytic Society.