His 15-year old daughter was also in the vehicle. She was not hurt. Investigators say he was hit while trying to protect her. He tells his story of working hard to walk again.
He knows it won't be quick or easy.
"I definitely will be on my feet again... make it happen for myself," he said.
Harrington is determined to walk again.
"The doctors never told me I had permanent paralysis," he said.
The 38-year-old high school boys basketball coach said he has gone through the hardest week of his life. He'll now begin what could be a long road to recovery at the Rehabilitation Institute of Chicago.
The attack happened the morning of January 30th as he drove his usual route in the 3800 block of West Augusta Boulevard -- to take his daughter to school before heading to work. He was struck in the back and the side as he shielded the teen from the gunman's bullets.
Deandre Thompson, 21, was charged in the shooting. Harrington, who played on Marshall's 1994 basketball team that was prominently featured in the documentary "Hoop Dreams," has coached at his alma mater since the 2007-2008 season -- when it won a state title. He said he hopes to be standing on the sidelines if it happens again.