Something exploded somewhere Friday morning that that rocked the Coryell Courthouse in Gatesville, shook homes, and broke out some windows, but authorities said Friday afternoon they have been unable to locate the source. Some residents also reported hearing a second loud explosion at around 2:40 p.m. Friday. "We've checked out the western part of the county, after report of second boom near Pearl. All is clear," Chief Coryell County Deputy Mark Wilcox said Friday afternoon. The first explosion at around 9:45 a.m. Friday was felt not only in Gatesville, but for miles around the community. "It rattled the entire shop," said resident Ronnie Bond, who lives on Powell Drive. "It sounded like it was behind us towards the east. It was scary because it was so loud and all the neighbors ran out on the street because they were concerned, too, because of the recent tragedy," he said, referring to the explosion in June at Coryell Memorial Hospital. We were all concerned," Bond said. Although the