AKRON — A Mennonite international aid group based in central Pennsylvania said a medical worker gunned down in Afghanistan is only the third person killed in its 90-year history.

Representative John Williamson of the Mennonite Central Committee describes 40-year-old Lancaster resident Glen Lapp as a "very kind, loving, respectful person."

Williamson said Lapp was due to finish a two-year assignment in Afghanistan in October.

The Taliban claimed responsibility for the Thursday shooting deaths of Lapp and nine other volunteers.