dr. wechthas been a controversial character, and something of a local folk hero. >> you're just as handsome as ever. >> thank you. that just cost me $25. >> a lot of people are familiar with the casey anthony case. >> yes. >> which was filled with forensic testimony. >> yes. >> right, of all kinds... >> yes. >> ...that was allowed in. >> yeah, by experts. >> by alleged experts. >> well, you say alleged. i'm not... to my knowledge, everybody who testified were all board-certified people. >> well, not the gentleman who testified about... >> the smell? >> the smell. there is no board in smellology. >> yeah, but the gentleman who testified about the odor, he works on the body farm. i mean, he's been there for years. he's dealing with these decomposing, smelly bodies every day in his professional life. if he's not qualified to express an opinion on what a body smells like that is decomposing, then who in the world is? >> bergman: experts are supposed to be qualified based on their knowledge, skill,