darren and phyllis sudman had a happy family life until their 3-month-old son simon was found dead inb. in the midst of their shock, the sudmans' pediatrician told them get tested. >> get your hearts check because babies don't die. >> they were in for another shock. phyllis was diagnosed with a rare heart problem called long qt syndrome. it could have caused her heart to stop. she had none of the usual symptoms like unexplained fainting, but she unknowingly passed it on to simon. >> once i was diagnosed with long qt syndrome, it can easily be treated. >> after their tragedy, the sudman's started simon's fund to pay for free heart screenings for any child near philadelphia. the fund estimates that sudden cardiac arrest is responsible for up to 15% of sudden infant deaths. it's also the number-one killer of student athletes. >> any time we do a screening, we're potentially preventing that devastation from happening again and again and again. >> last year, with the help of the sudmans, pennsylvania became the first state to require education on sudden cardiac arrest for coaches, trainers

darren and phyllis sudman had a happy family life until their 3-month-old son simon was found dead inmidst of their shock, the sudmans' pediatrician told them get tested. >> get your hearts check because babies don't die. >> they were in for another shock. phyllis was diagnosed with a rare heart problem called long qt syndrome. it could have caused her heart to stop. she had none of the usual symptoms like unexplained fainting, but she unknowingly passed it on to simon. >> once i was diagnosed with long qt syndrome, it can easily be treated. >> after their tragedy, the sudman's started simon's fund to pay for free heart screenings for any child near philadelphia. the fund estimates that sudden cardiac arrest is responsible for up to 15% of sudden infant deaths. it's also the number-one killer of student athletes. >> any time we do a screening, we're potentially preventing that devastation from happening again and again and again. >> last year, with the help of the sudmans, pennsylvania became the first state to require education on sudden cardiac arrest for coaches, trainers, student