A psychologist from San Antonio's Haven for Hope came to Rapid City on Thursday, Feb. 2, to speak to a crowd of more than 200 people at the Dahl Arts Center. This was a second trip for Gilbert Gonzales. He also visited in 2011 to help city and county officials kick off plans for a comprehensive service center for homeless people. Gonzales says addiction and mental illness often underlie homelessness, and treating the issues can ultimately save taxpayers a lot of money.