Mitchell Uyematsu Saisho, 25-year-old Montebello resident, passed away peacefully on December 23, 2025 after an eight month battle with cancer. 

While a Schurr High student, he was a cross country varsity boys co-captain, a track and field distance runner, Mr. Schurr High 2018, a host ambassador for the Montebello-Ashiya Sister City Association, and a National Merit Scholarship recipient.

He was a proud graduate of UCLA, with a degree in biochemistry and a minor in Japanese. Member of Alpha Chi Sigma, collegiate/professional fraternity for those in chemistry-related fields.  

He enjoyed using his biochemistry knowledge in his job as a quality control laboratory technician at Ecolab.

He loved fish, marine mammals, dinosaurs, musicals, J-pop, anime, tokusatsu, Japanese history, cooking and dining out, and keeping up with politics.

He is survived by his parents, Richard Saisho and Lisa Uyematsu; and grandparents, Jon and Linda Uyematsu.    A memorial service will be held in the SkyRose Chapel at Rose Hills (3888 Workman Mill Road, Whittier, CA 90601)  Monday, January 19, 2026 at 2:30 p.m. Casual attire (no suits or ties) and face masks are encouraged. In lieu of flowers or koden, please send donations in Mitchell’s memory to the Marine Mammal Care Center Los Angeles (marinemammalcare.org), Food Allergy Research & Education (foodallergy.org), or Dana-Farber Cancer Institute (dana-farber.org).

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