RICHMOND, B.C.—Police say two men and two women who were found dead at a home after a shooting in Richmond, B.C., were from the same family. Sgt. David Lee of the Integrated Homicide Investigation Team said the identities of the four people aren’t being released until their family members have been notified. “This is a tragic loss of life, but we are able to confirm the community is not at risk,” Lee said Thursday. “Based on evidence collected at the scene and other information available to us, we’re able to confirm that all persons involved in, and responsible for the homicide, were located at the scene. “There are no suspects at large and (we are) not looking for any additional persons.” He said investigators have confirmed that the shooting was an isolated incident and the deaths are not a result of partner violence. Lee said one of the deceased had …