Several more defense witnesses testified Tuesday in the fast-moving child-sex abuse trial of former Penn State assistant football coach Jerry Sandusky.

Psychologist Eliot Atkins told the court that he conducted a six hour interview of Sandusky, and reviewed materials including the "creepy love letters" Sandusky sent some of his alleged victims and Sandusky's memoir, "Touched." 

Based on the interviews and materials, Atkins testified that he diagnosed Sandusky with histrionic personality disorder, which, according to the National Institutes of Health, is a "condition in which people act in a very emotional and dramatic way that draws attention to themselves." 

The defense showed excerpts from some of these letter, including one which read, in part: "I write because of the churning in my stomach when you don't care. I still hope there will be meaning to the time we have known each other."

Atkins then testified that, "The letters express his hurt, disappointment and criticism of these people for not getting back what he hoped to get from these relationships."

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