Barber Nicolas Martinez has been cutting hair in Richmond Hill for weeks now, putting skills he learned in the Marines to good use by giving something back to those less fortunate. But he wouldn’t have been doing any of that here, had Martinez’s truck not broken down on I-95 near the Ogeechee River on Christmas Eve.He’d hoped to be in Florida on Christmas Day, part of his plan to reconnect with veterans like himself, people who’d made multiple deployments to Iraq and Afghanistan and then had come home to find they’d lost their sense of mission and were losing friends and comrades along the way. “I woke up one day and got some bad news,” Martinez said.