Reporting | ShopTalk Reporter Jonathan Mumm Retiring After Nearly 30 Years with KXTV By Andrew Gauthier on May. 13, 2011 - 11:51 AM Veteran Sacramento reporter Jonathan Mumm is set to retire after nearly 30 years with KXTV. A five-time Emmy winner, Mumm joined the ABC-affiliate in 1983 and currently hosts KXTV’s regular travel feature “California P ...