Keith Walker was saved at a Billy Graham crusade in New York in 1988. In 1995, he co-founded Evidence Ministries with his wife Becky as a missionary outreach to Jehovah's Witnesses and Mormons. Keith initially started his Christian walk believing Mormonism was just another denomination of Christianity. With the help of Becky, and in-depth study, he came to understand this was wrong – and so his desire to minister to Mormons grew.
Working in the San Antonio region, the ministry's threefold purpose is to REACH Jehovah's Witnesses and Mormons for Christ, TEACH Christians how to lovingly witness to them and WARN the community about the differences between these two groups and Biblical Christianity.
Keith has been fulltime in this ministry since 1999 and is active online through the ministry's web site, blog, YouTube channel and Facebook page, as well as leading mission teams to Utah for street evangelism.