They did found dogs or dog remains in the car? If they are dogs in the car will be more than one bullet to look for. If not, he could had been killed in another

They did found dogs or dog remains in the car? If they are dogs in the car will be more than one bullet to look for. If not, he could had been killed in another place and moved later. Finding dog corpses or dogs hurt in a different place could signal the real crime scene.