Feb 17, 2017 | Aurora Torres Preston Smith successfully defended his this on February 24, 2017. His thesis, The Influence of Jailhouse Informant Testimony on Eyewitnesses' Propensity to Change their Identification, was directed by Dr. Jeff Neuschatz in the Psychology and Law Laboratory. Preston will begin a doctoral program in Cognitive Psychology at the University of California-Riverside. Congratulations.