DAYTON, Ohio — Air Force veteran Blake Miller is reported to be in "stable condition" after his PTSD was triggered by a ringtone that reminded him of his active duty days. "It happened so suddenly, like flipping a switch," says Yara Parsons, who works in the cubicle next to Miller's at his civilian job. "One moment, Blake and I were chatting right after clocking in, then next thing I knew he was having a meltdown."