Roof has been charged with murdering nine people at Emanuel African Methodist Episcopal Church in South Carolina in June. He also faces federal hate crime charges.
Hospital admissions caused by bike injuries have more than doubled in the past 15 years across the country. One doctor thinks the "Lance Armstrong effect" could be a reason for the jump.
River traffic was halted on a portion of the waterway after the accident near Paducah, Ky. The maximum size of the Wednesday evening spill of clarified slurry oil is thought to be 250,000 gallons.
Outbreaks reported across the country this summer are not related; it doesn't spread among people. Instead, it's spread in warm water, like that in building cooling towers.
Earth is home to more than 3 trillion trees, a new map of forest density shows. That's more than anyone realized. But the total is also down about 46 percent since the first humans arrived.
Due to lack of a state budget, teachers are working without pay in the Chester-Upland school system. The district says it can't afford to pay them until it gets the money it is due from the state.