I understand the soldiers in Lyman were their professional soldiers, not Putin's new ragtag conscripts.
Maybe they booby-trapped some bodies. They usually do. But it sounds like the ones on the roadside were attempting to flee, and the Ukrainians had big guns overlooking the road. So it was a massacre.
The newspapers will pick up the story soon, I assume. But you can learn what is happening from the horse's mouth these days. Photos, soldier reports etc. Just make sure to confirm later via newspapers.