A Subway franchisee and his wife were found executed in their home, in a gated community in Spring, Texas, on Saturday.
Bao and Jenny Lam's adult son Richard called police to conduct a welfare check on his parents this weekend when he hadn't heard from them in two days.
Police broke into the two-story home around 9pm and found the couple bound and shot dead on the first floor.
The home - located in the gated Northgate Country Club community - was ransacked, with firearms and other items missing.
Bao and Jenny Lam, both 61, were found executed in their Spring, Texas home on Saturday
Police say the couple were found bound and shot on the first floor of their home (pictured) in a gated community late Saturday night
'Everything was disturbed,' said Harris County Sheriff Ed Gonzalez told KTRK. 'Furniture was overturned, drawers were opened. It will take some time to process the scene.'