Terra Bullis testified Thursday that the June 29, 2017, campus vigil for Yingying Zhang was the first time that her then-boyfriend directly admitted killing the visiting University of Illinois scholar. PEORIA — Brendt Christensen thought he could trust his ex-girlfriend. It took him a couple weeks to gradually open up, but at a campus vigil to raise awareness for visiting University of Illinois scholar Yingying Zhang, Terra Bullis said he took her iPhone and looked through her calls and texts. read more