Tulsa - A computer company is being used to fight high-tech crimes in Tulsa. Some of the cases involve child pornography, where information is retrieved from the accused's computer, some of which may have been deleted. NewsChannel 8's Burt Mummolo reports on the company that specializes in recovering hidden information. Have you tried to cover your tracks with the click of a mouse? Erasing the evidence of embezzlement or an online affair? Too late. Digital forensics has made the delete key obsolete. "What we do is we take a computer, throw it up against a wall and frisk it," says...