Fourth suspect arrested in killing of Gulf Coast couple

PENSACOLA, Florida (CNN) - A fourth suspect has been arrested in the shooting deaths of a Gulf Coast couple known for adopting special-needs children, authorities said late Monday.

Gary Lamont Sumner faces a murder charge, said Escambia County, Florida, Sheriff David Morgan.

Wayne Coldiron, 41; Leonard Patrick Gonzalez Jr., 35, and Leonard Patrick Gonzalez Sr., 56, were arrested over the weekend. Coldiron and the younger Gonzalez face charges of murder, robbery and residential home invasion; the elder Gonzalez faces charges of evidence tampering for allegedly trying to disguise a vehicle spotted at the home.