Authorities search for dolphin killer

Published On: Nov 19 2012 05:45:06 PM CST   Updated On: Nov 19 2012 06:04:05 PM CST

Nov. 19, 2012: Four dolphins have been found stabbed, shot or mutilated on the Louisiana, Mississippi and Alabama coasts. Investigators are working to find the person or persons responsible for the killings. Mary Lee reports.