Providence St. Mary Foundation and The Moms' Network present Demetri Martin live in Walla Walla. Demetri is a regular performer on The Daily Show, and has worked as a staff writer at Late Night with Conan O'Brien, won numerous awards, released two stand-up comedy albums and three hour-long comedy specials. At Walla Walla Cordiner Hall, Whitman College, 46 S Park St.