Original sentence: A purple, 1.44-megabyte Memorex computer disk was enclosed in the package, and police reportedly traced it to Rader after FBI analysis of deleted data on the disk.Both were born after the BTK killings started.Once the computer disk was analyzed, police began surveillance of Rader.Sometime during the surveillance period, police obtained a warrant to seize the medical records of Rader's daughter, Kerri.The records and material that were seized included a tissue sample, which was tested for DNA and provided a familial match with semen at an earlier BTK crime scene
Edited sentence: Both were born after the killings started.Once the computer disk was analyzed and the incriminating data recovered, the police began surveillance.Reports indicate that a purple, 1.44-megabyte Memorex computer disk was enclosed in the package, and police were able to trace it back to Rader after FBI analysis of deleted data on the disk.Sometime during the surveillance period, police obtained a warrant to sieze the medical records of Rader's daughter, Kerri.The records and material that were siezed included a tissue sample, which was tested for DNA and provided a familial match with semen at an earlier BTK crime scene.This may have provided the evidence police needed to close in