HAMBURG, Pa. - While law enforcement authorities remain tight-lipped regarding their investigation of the deaths of two children in Berks County, court documents obtained by 69 News on Monday are shedding some new light on the case.

The documents are applications for four separate search warrants and their respective affidavits of probable cause related to the deaths of 8-year-old Conner Snyder and his 4-year-old sister, Brinley, both of whom were found unresponsive inside their home in the 2400 block of Route 143 in Albany Township on the afternoon of September 23.

The court documents reveal that Lisa R. Snyder reported finding her children in the basement, hanging approximately three feet apart from each end of a plastic-coated wire that had been wrapped around the basement's main support beam. Alongside the children, police said they found two wooden dining room chairs that had been knocked over.

Both children were resuscitated by EMTs and flown to Lehigh Valley Hospital near Allentown, where they were admitted to the pediatric intensive care unit on full life support, police said. They died on the afternoon of September 26.

In their application for one of the search warrants, police said they were seeking a husky pit bull mix, weighing approximately 50 pounds, that the mother told them used to be tied outside the home with a plastic-coated wire.

"By determining the dogs (sic) actual weight and sized (sic) utilizing a scale will assist in the criminal investigation," Pennsylvania State Police Trooper Ian Keck said in the warrant application. "All of this is important to the criminal investigation and reconstruction of the events surrounding this incident."

The dog, however, had been given away, Keck said.

The other warrants sought trace evidence, including fingerprints and DNA; and electronic communication devices, including computers, tablets, and cell phones.

"This will assist the investigation by potentially establishing a link between the perpetrator and VICTIMS and the crime scene, and reconstructing the events surrounding this incident," Keck said in one of the warrant applications. 

Autopsies on the children were done last week, but the results are pending additional forensic testing, according to the coroner's office, which is assisting state police and the Berks County district attorney's office with the investigation.