Family and friends will gather to remember Robert "Bob" Boyajian.
Friday's service will take place at 10 am at the Holy Trinity Armenian Apostolic Church in Fresno.
RELATED: Missing 75-year-old man in Madera County was murdered and buried in Mojave Desert: Deputies
Investigators say 21-year-old Audrik Matevosian is accused of killing the 75-year-old while he was at his Bass Lake home, and then burying Boyajian's body in a cave in the Mojave Desert.
Boyajian was found wrapped in bedding and sealed in a body bag.
Matevosian is due back in Madera County court for his next hearing on August 28.