In a quiet Lawrenceville, Georgia neighborhood, the life of 82-year-old Donna Dennis came to a tragic end in what authorities have described as a murder-suicide. On Saturday, September 23, 2017, family members discovered the bodies of Dennis and her 57-year-old son, Mark Knox, inside their home on Bishops Lane. Both had sustained fatal gunshot wounds.
Concerned after not hearing from them, a family member went to the residence to check on their welfare. Peering through a back door, the re
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