One minute, Tom Koellhoffer was checking in to swim at his local YMCA, and the next, he was waking up in the hospital. He had gone into cardiac arrest. “I don’t remember coming here or changing into my suit," Tom said. "I don’t remember a thing about that day." But the lifeguards who saved his life remember it well. While on duty, Jodie Hart noticed Tom up against the pool wall — and he looked blue. Ruth Clement was off duty but happened to be in the water that day. Both sprang into action. Ruth realized Tom didn’t have a pulse. Jodie began CPR while another staff member called 911 and grabbed an AED. Jodie and Kai Butcher, the lifeguard working in the health and wellness center, took turns performing CPR for nearly 20 minutes until first responders arrived. “In the moment, you don’t have time to cry — you just have to keep going,” Jodie said. “And then when he left [in the ambulance], I cried for a really long time.” Thanks to their tremendous teamwork, Tom survived. Lifeguards ...