It had snowed here earlier on that Sunday. The temps were in the mid 20s to low 30s that night.
Thanks! So not only was the house closed up, but the heat was likely to be on. Those gunshots had to compete with some sound buffers plus some other noise at the time.
Plus the neighbor house is some 230 yards away. At one point the neighbor said she heard the gunshots around 2 a.m., not 12:30. The neighbor account may also be spurious.
The night being cold suggests the perp took Jayme somewhere prearranged. The fact that he didn't harm the dog gives me faint hope that he hasn't harmed the girl. Of course she has been harmed, but you know what I mean. Later...