A violent home invasion and robbery in Jackson, Tennessee, ended in two deaths in January 2014. Johnny Shivers, 36, and his 21-year-old stepson, Markel Owens, were shot and killed after two masked gunmen ambushed Shivers and his 16-year-old son as they returned to a duplex on Walker Road. The intruders forced the family inside, demanded money and a physical struggle ensued; Chermaine Owens was shot and injured and the robbers fled with a large sum of cash.

Investigators found a large quantity of marijuana in the residence and believe the attackers targeted the home because they knew drugs or money were there. Authorities arrested Derrick Wade, 22, charging him with two counts of felony murder and related offenses; evidence showed one intruder was shot in the thigh and later sought medical treatment. Two other men were also arrested in connection with the case.

What information might help clarify who planned the attack or how the suspects were connected to the residence?