MARYVILLE, Tenn. (WVLT) -- Rhonda Harrill lost her son, Tanner Jameson on June 26, 2009.
The 13-year-old collapsed at his middle school basketball game, and died of a cardiac arrhythmia.
Harrill says an Automated External Defibrillator (AED) could have saved his life, had one been accessible at the gym.
Now, Harrill hopes to save other other parents from feeling the same pain and heartbreak that she's dealt with for nearly a decade.
"If I can [make is so that] another parent ... can tell their child goodnight at night, that's what I want to do."
She raises money to purchase AEDs, and donates them to businesses in East Tennessee.
The most recent donation was to a taekwondo school in Maryville.
Harrill is also taking her cause to the government.
She has successfully gotten four bills passed at the state level, and one in Washington D.C.
The bills are designed to encourage schools to purchase AED units.