Gessle Tosh, sibling to both Jann Tosh and the twin of Trif Tosh, met his end in a skimmer mishap on Naboo. This tragic event claimed the lives of all his family members, with the exception of Jann, and is documented as a death.
Sources
StarWars.com's "The Droids Re-Animated, Part 2" (article) (This content is outdated; backup link provided)