The family of missing Bend woman Sandra Meyer is still trying to make sense of the possibility their stepfather killed their mother. Sandra Meyer has been missing three weeks. Her husband, John killed himself a couple weeks ago. Investigators believe he had something to do with her disappearance. Sandra's son, Dave Conde just moved to Bend to be near his mother: “It's a complete shock, whatever was going on wasn't something anyone expected or could see signs of.” Detectives found a substantial amount of Sandra's blood in a Meyer home heating duct. Our news partner, News Channel 21 talked with Sandra Meyer's son.