Sixteen year old Albie Burton, a linebacker at Central High School, broke his leg in a game in late August.
On September 11, he was up late playing video games with his brother, when he began feeling strange.
"I'm like, 'Man, I feel funny,'" said Burton.
"I went into the kitchen to get some water and then I came back and you looked like you were sleep," said Joshua Lynch, brother.
Burton suffered a double pulmonary embolism, very rare in teenagers, and cardiac arrest.
When did Lynch realize he needed to take action?
"It was when my mom said, 'He stopped breathing,'" he said.
It happened too fast for Lynch to think about the CPR classes he took at the YMCA as a kid.
"I tried to give him CPR on the couch but it was too much give, so I put him on the floor," said Lynch.
The paramedics also administered CPR.
"We were heading to CHOP and then we had to stop again and they shocked him again," said Cherie Lynch, mother.
"It was just hard to see my son going through what he went through," said Albert Burton III, father.
Dr. Robert Berg says only 20 percent of the time, do people who witness someone in cardiac arrest do anything and less than ten percent survive, outside a hospital.
"When I first saw him, he was nearly dead," he said.
Lynch helped save his brother's life.
Dr. Berg says another reason Burton survived three cardiac arrests is because CHOP uses CPR mannequins that greatly increase efficiency when performing CPR. The hospital calls them 'rolling refreshers.'
However Lynch is the one who gave his brother a fighting chance. As for Burton, he expects to be walking without crutches by his birthday in mid-December.