Man who studied Cecil the lion for 9 years talks impact

In this frame grab taken from a November 2012 video made available by Paula French, a well-known, protected lion known as Cecil strolls around in Hwange National Park, in Hwange, Zimbabwe. Zimbabwean police said Tuesday, July 28, 2015 they are searching for Walter James Palmer, an American who allegedly shot Cecil with a crossbow while on a big game hunt in a killing that has outraged conservationists and others. Paula French/AP