Did anyone see Israel Coward Keyes in Texas in 2007, 2008, 2010 and 2012

Did anyone see Israel Coward Keyes in Texas from February 5-8, 2007, October 24, 2008 to November 5, 2008, July 18-22 and February 2, 2012 to March 13, 2012.  I would like to know if there are any outstanding missing and unsolved murders from this time period that this creep may have been involved with it please call 1-800-CALL-FBI if you know thanks.