Best-selling author Patricia Cornwell meets Wesley Thomas, who spent 29 years living on the streets of Washington. Cornwell read in John Kelly's column how Miriam's Kitchen helped Thomas find a home — and how her mysteries were his favorite books. (Photos by John Kelly/The Washington Post)

A lot of things helped Wesley Thomas survive 29 years living on Washington’s streets: the meals distributed by the charity Miriam’s Kitchen, the coins he’d panhandle around Foggy Bottom, his own hard-earned smarts.

On Friday afternoon, another lifesaver sat in a sun-filled room at Western Presbyterian Church waiting to meet him: best-selling thriller writer Patricia Cornwell.