Kathy Coppedge and her son Casey were leaving from a sermon when Kavin attacked .
Kavin Lincecum waited outside the local church 's parking lot for a victim to rape .
Kathy Coppedge and her son Casey were leaving from a sermon when Kavin Lincecum attacked .
Kavin Lincecum waited outside the local church 's parking lot for a victim to rape .