(CBS/AP) GRAYSON, Ga. - Police in Gwinnett County say a 76-year-old man fatally shot his 85-year-old ailing sister and then killed himself in a van outside a Grayson church.
Police say officers were called to the First Baptist Church around 9:30 a.m. Sunday morning. They found Clarence Porter and Avis M. Whitley, dead inside a white Mercury Villager van in the parking lot. Police say both died from apparent gunshot wounds.
Investigators say the two are brother and sister and lived together in Loganville.
Investigators say Whitley suffered a severe stroke several weeks ago and was in poor health. Investigators have not determined a motive for the apparent murder-suicide. The investigation is ongoing.
Meanwhile, the Rev. Tim Brogan who is the church's pastor, told the Atlanta Journal-Constitution the pair had attended the church for a long time.