William Thatcher

Dr. William Thatcher is a Professor of Public Health at Fresno State University. Recently, a pro-life group caught him on camera erasing pro-life messages written in chalk around campus. Thatcher also ordered his students to erase the messages, even though the group had permission to write the messages on the sidewalks.
Source: http://www.cnn.com/2017/05/12/health/fresno-chalk-free-speech-trnd/