Close Father of Kayla Mueller endorses Donald Trump at Phoenix rally Carl Mueller, the father of Kayla Mueller, spoke at a rally for Donald Trump Oct. 29, 2016. Kayla Mueller was a humanitarian worker from Prescott, Arizona, who was killed by ISIS. KPNX 9:27 PM. MST October 29, 2016 TRENDING VIDEOS Valley teens decorate cupcakes with swastikas at Jewish teen's party Fired barista posts viral rant Why is an electric car maker coming to AZ? A life changed after the Jodi Arias trial McCain responds to Trump flag-burning tweet Fight for $15 protests break out across US Truck hits, kills 1 year-old boy in Phoenix More Stories Hatchimals in Arizona: Where to buy them Dec. 8, 2016, 2:41 p.m. MUGSHOTS: Robin Williams, Tupac arrested in Arizona… Dec. 7, 2016, 5:02 p.m. Judge Reinhold arrested at Dallas Love Field Dec. 8, 2016, 2:03 p.m.