"Some Things Are Worth The Fight"

Shannon Aldridge poses for a portrait Wednesday, Feb. 20, 2019 in the gazebo at Kiwanis Park in Cape Girardeau, Missouri, where they celebrated his daughter Sahara's 12th birthday party in 2006. The day after that party, he noticed her walking oddly and took her to the hospital where doctors found a brain tumor. Sahara died the following year. "This is like the last really good memory," Aldridge said of the space, which he visits often during training runs in the park. Aldridge will run the Boston Marathon in April to raise funds for cancer research as a member of the St. Jude Heroes team. (Tyler Graef ~ Southeast Missourian)

Shannon Aldridge holds a photo of his daughter, Sahara, at his Cape Girardeau, Missouri, home, Thursday, Feb. 28, 2019. Sahara died in 2007 at 13 after a battle with brain cancer. (Tyler Graef ~ Southeast Missourian)

Shannon Aldridge runs along the LaCroix trail in Cape Girardeau Saturday, Feb. 23, 2019. "I went from a guy who couldn't run half a mile to a guy who's run 100 miles 3 times," he said. "That's my therapy, I guess you could say. Instead of taking a little blue pill or a little yellow pill to function in the world, I run." (Tyler Graef ~ Southeast Missourian)

Shannon Aldridge monitors a page featuring his fundraising link at his computer at home in Cape Girardeau Thursday, Feb. 28, 2019. To be a part of the St. Jude Boston Marathon team, he agreed to raise $10,000 but is trying to raise $21,000 in total to pay homage to his daughter's basketball number, 21. At the time of this photo, he had raised more than $12,000. (Tyler Graef ~ Southeast Missourian)

Shannon Aldridge runs along the LaCroix trail in Cape Girardeau Saturday, Feb. 23, 2019. Aldridge, who runs ultra-marathons, said he's not fast, but he knows how to keep going. (Tyler Graef ~ Southeast Missourian)

Shannon Aldridge runs along the LaCroix trail in Cape Girardeau Saturday, Feb. 23, 2019. "We were running scared," he said, recalling the months after Sahara's diagnosis. "We didn't know what to do. A stranger just told you your daughter was going to die and there wasn't a damn thing you could do about it." He said he hopes the money he raises for cancer research will help spare other parents that grief in the future. (Tyler Graef ~ Southeast Missourian)

Shannon Aldridge rests after completing a workout run on the LaCroix trail in Cape Girardeau, Saturday, Feb. 23, 2019. To be part of the St. Jude Heroes Boston Marathon team, Aldridge agreed to raise at least $10,000 for cancer research. But to pay homage to his daughter and her preferred jersey number, 21, Aldridge said his goal is to instead raise $21,000. At the time of this photograph, he had raised more than $12,000. (Tyler Graef ~ Southeast Missourian)