A medical examiner report ruled Antonio Arce's a homicide, but the officer who shot him won't face charges.
Election results show Mayor-Elect Corey Woods beat incumbent Mark Mitchell by 14%, and Doreen Garlid won with the most votes at 25%.
Tempe residents will choose a mayor and three City councilmembers in Tuesday's citywide election. Voters can drop off ballots until 7 p.m.
The officer shot and killed the 14-year-old boy in a Tempe alleyway last January.