San Antonio Police prepare clear a radius around Alamo Plaza in anticipation of possible riots, Sunday, May 31, 2020. A group of persons rioted last night after a peaceful rally held for George Floyd, an African-American that died when he was being arrested in Minneapolis. Photo: Jerry Lara, Staff / San Antonio Express-News / **MANDATORY CREDIT FOR PHOTOG AND SAN ANTONIO EXPRESS-NEWS/NO SALES/MAGS OUT/TV   © 2019 San Antonio Express-News