1. National Center for Forensic Science and Department of Chemistry, University of Central Florida, P.O. Box 162367, Orlando, Florida 32816-2367 (C.M.B., K.L.S., M.W., J.M.M., M.E.S.); and South Carolina State Law Enforcement Department (SLED), 4400 Broad River Road, Columbia, South Carolina 29210 (L.J.P.)