Mastellar, Shannon R., 48, of Wichita, Kansas passed away on Monday July 16, 2018 in Wichita. Shannon was born the son Gary and Frances Mastellar on March 20, 1970 in Wichita. Shannon joined RDM USA as a Regional Sales Manager Shannon has a diverse background in Refrigeration and HVAC applications. He has extensive sales experience with Quick Serve Restaurant (QSR) and small format chains. Shannon had a very diverse professional background that will make him an asset to RDM. He was preceded in death by his father, Gary Mastellar, step-son, Christopher Sherwin. Survivors include his wife, Kim Mastellar, mother, Frances Mastellar, brother, Gary "Butch" Mastellar and his wife Robin. Visitation will be from 6:00 p.m. to 8:00 p.m. on Friday July 20, 2018. Celebration of life services will be 10:00 a.m. on Saturday July 21, 2018 both at Lakeview Funeral Home, 12100 E. 13th St. N., Wichita, Kansas. Burial will follow at Lakeview Cemetery, Wichita, Kansas. In lieu of flowers memorials can be made to, The University of Kansas Medical Center c/o organ transplant care, 2330 Shawnee Mission Pkwy, Suite 305, Westwood, KS 66205.