Garrett S. Foster was a United States Air Force flight mechanic from Austin, Texas, United States. Openly carrying an AK-47 rifle, he spent his final day attending a Black Lives Matter protest in his hometown with his fiancée Whitney Mitchell, a quadruple amputee.

“They don’t let us march in the streets anymore so I got to practice some of our rights,” Mitchell told journalist Hiram Gilberto Garcia, who broadcast the protest live on Periscope on July 25, 2020. “If I use it against the cops, I’m dead.”

Foster came from a family of military combat veterans, including his father. Here are 10 more things about him:

1. He is Stephen Paul Foster and Sheila Joyce Foster‘s son.
2. His sister Anna Mayo told the Austin American-Statesman that he and Mitchell “have experienced so much hate just for their relationship in general” and “from day one, he’s fought to end that.”
3. His aunt Karen Sourber told CBS Austin that he was “a champion of justice” who wanted “to make sure that all people are treated fairly and equally.”
4. He grew up in Plano, Texas and previously lived in Dallas, Texas.
5. In his late teens, he enlisted in the U.S. Air Force.
6. In 2009, he and Mitchell started dating. She had all four of her limbs amputated after she developed a medical condition that led to sepsis. Two months later, he had to leave for basic training at the U.S. Air Force.
7. In 2011, he was discharged from the U.S. Air Force to be the full-time caretaker of Mitchell. He was a flight mechanic.
8. In 2018, he and Mitchell moved to Austin.
9. After the fatal arrest of George Floyd in Minneapolis, Minnesota, USA on May 25, 2020, he and Mitchell regularly attended Black Lives Matter protests in Austin.
10. On July 25, 2020, he and Mitchell attended a Black Lives Matter protest in Austin. Minutes before 10:00 p.m., the protesters were marching through the intersection of Fourth Street and Congress Avenue when a car turned aggressively through the intersection and abruptly stopped. He approached the car and was shot by active-duty U.S. Army sergeant Daniel Perry, then 33. First responders performed CPR on him at the scene. He was transported to Dell Seton Medical Center in Austin where he was pronounced dead less than an hour after the shooting. He was 28.