GPS information from Dylann Roof's car reveals a chilling detail: He stopped at a second South Carolina church after his massacre, reports ABC affiliate WCIV. When he left Emanuel AME Church in Charleston, Roof got back on the interstate and took an exit that brought him to Branch AME Church about 30 miles away, per the station, which cited GPS data not used in his federal trial. There, he turned off his GPS for several minutes, which prosecutors say suggests he sat there contemplating another attack. Like Emanuel, the church had a Bible study that night, though it's unclear whether anyone was inside at that time or whether Roof actually left his car.
Roof told investigators upon his arrest that he was too tired to pull off another attack, notes ABC News. The second church is located on a stretch of road with few other businesses, making it unlikely Roof would have stopped there deliberately. Plus, prosecutors say he drove by it months earlier when he was scouting locations. Roof was sentenced to death in his federal trial for killing nine people at Emanuel, but the new information could still be relevant. For one thing, Roof has requested a new federal trial, reports the AP, and he still faces a state trial that also could result in the death penalty. (Read more Dylann Roof stories.)