We know from his testimony that at least 26 hours elapsed between his claimed first shots and the arrival of any morgue ambulance on the scene.
Unless the Little Falls police department just happened to have a crack medical forensics team on hand on the Friday after Thanksgiving, it was unlikely that an expert analysis could have been started on the bodies without a delay of several more hours at minimum.
Just using logic.
No. 26 /= 48. No matter how you twist it.
Coroner would have done an on-site analysis complete with forensic photography before ever moving the bodies.