Grinning while holding a fish on a romantic camping trip, this is the last photo of Gary Ridley alive. Cops now believe it could be the key to proving he strangled his wife to death before taking his own life in cowardly murder-suicide
Ruth Ridley vanished in October 2019 after camping with estranged husband
Gary Ridley, 61, is suspected of murdering his wife before then killing himself
Couple believed to have gone camping on NSW/ Victoria border on October 25
Police hope photo showing him holding a fish could hold key to finding her body