Morgan suggests the killer used a choke hold to kill the victims because it wouldn't leave any signs of trauma. However it is a myth that choke holds don't leave any signs.
The only way to asphyxiate a person without leaving evidence of how the victims was killed is Burking, which nobody even mentioned as a possibility.
An unbroken hyoid is no way evidence that the victim wasn't strangled, is in fact very rare for the hyoid to fracture from strangulation since it is very flexible and not fixed until age 40 at the earliest (some people's aren't fixed even in their 60s).
The camera crew is reflected on the SUV during the closeup shot of the SUV turning into the parking lot.