Christopher Scott Theisen, 25, of Cleveland, passed away on  August 14, 2015 at his home. He was born on June 30, 1990 in Holland, Michigan to Craig and Mary (McDonald) Theisen. Chris received his Bachelor's Degree in Economics from the University of Michigan where he became a member of the Delta Upsilon Fraternity. He was employed at Cleveland Research Company as a market research associate. Chris loved the University of Michigan, the Detroit Tigers, and investing. He was an avid learner and a world traveler; he and his family lived in Singapore were he graduated from high school. Chris is survived by his parents, Craig and Mary (McDonald) Theisen of Plymouth, Michigan, two brothers, Tate and Scott Theisen, both at home and  grandmother, Agnes McDonald of Defiance. He was preceded in death by grandparents, Raymond McDonald, and Charles and DoloresTheisen. Visitation will be held Thursday, August 20, 2015, from 12:00 noon - 2:00 pm at Schaffer Funeral Home, Defiance, where funeral services will follow at 2:00 pm with Deacon Jeff Mayer officiating. In lieu of flowers memorial contributions may be made to the JDRF (Juvenile Diabetes Research Foundation) at www.jdrf.org or JDRF Metro Detroit / South East Michigan Chapter 24359 Northwestern Hwy #225 Southfield, MI 48075. Online condolences can be given at www.Schafferfh.com.