AdvertisementCould Brain Surgery Save A Father And Son?December 24, 2017Michael MayfacebookEmailCarl Luepker, his son Liam, 12, and daughter Lucia, 11, light the menorah during Hanukkah in their home in Minneapolis, Minn. Carl and Liam both have a degenerative nerve disorder called dystonia. (Jenn Ackerman for NPR)