then let go and it bit again. >> here leg had a lot of blood. >> and there was a shark tooth in her head. that's her holding it right there. they were able to save erleg. >> i am trace gal ger in for shepherd smith. it is time for the news. >> and a huge day for prosecutors in the casey anthony murder trial. first they presented evidence that sippedy anthony lied on the when she said she did computer searches for chloroform and then the computer expert that testified about internet records on neck breaking. >> this is a google search. that is specific in the words