According to the news video he showed one of the girls dirty pictures on his computer. No charges have been filed for pornography yet as that is still under investigation but he should be facing the sex assault charges pretty soon.
I don't have any other information but will post more as I get it. If you have any links related to the story feel free to put 'em in the comments.
Updated - I am attempting to update a couple of the stories I've posted over the last few months. This is one of those where I didn't have very much information when I posted the story and never did update it in the days following.
Back toward the end of September Mark Savino was sentenced to 30 years in prison for the rape of two children as well as possessing 1300 images and 359 videos of child pornography.
The victim's family was living with Savino at the time of the rapes which happened from November of 2007 until February of 2008.