Caravan for U.S. troops shows colors Military families and supporters in Move Forward America speak at Griffith Park en route to a rally next weekend in Washington, D.C. By Valerie Reitman, Times Staff Writer March 10, 2007 Kyle Crowley, an 18-year-old Marine, died in Iraq nearly three years ago. Stricken by stress and grief, his father, Mark Crowley, suffered a near-fatal heart attack about 17 months later, on the fourth anniversary of the Sept. 11 attacks. The elder Crowley, now 48, a sheet metal worker from the Northern California town of Tracy, wasn't healthy enough to return to work. He's...