Bill Wynn doesn’t know much about Jerome Jay Ersland’s case, but he knows firsthand what it’s like to kill a robber. Wynn shot one Wednesday at his pharmacy in San Antonio, Texas. "What was I thinking?” he told The Oklahoman. "I’ll be honest with you: Not much. From the time he came in the door until the time it was completely over with ... was less than a minute. There wasn’t time to think.”