Notice that there was no other adult (i.e. no mother) in the home at the time of the massacre. Wonder if UNNAMED DAD was involved in a "custody dispute" (i.e. custody war), and was yet another father who should have been denied access--but wasn't.
http://wearecentralpa.com/fulltext/?nxd_id=477242
Two Kids Killed In Murder-Suicide
By: WTAJ News
Updated: July 6, 2013
HORTON TOWNSHIP, ELK COUNTY - State Police has confirmed a 32 year old man killed two of his kids before killing himself Thursday night in Horton Township, Elk County.
Police say a seven year old boy and an eight year old girl were shot and killed by their father, before he turned the gun on himself at their house on Route 219 Thursday night.
Police say they were the only people in the house at the time of the shootings. Autopsies were completed on all three Saturday morning in Erie. State Police are not releasing any more details at this time.