Our 13 yr. old girl was introduced to another girl's online friend whom they met through the online game RuenScape.
He sent a picture of himself, a 15 yr. old boy and he has severe diabetes.
They emailed for quite awhile then went to chat and now talk regularly on the phone as well as texting.

Two things are bothering me. I was right next to her one evening when she called him and I could hear his voice. I was shocked to hear this deep bass voice like a middle aged man. Now I know some guys get very mature voices at puberty but it still bothered me.

The second thing is she used my phone several times to text him and I was deleting texts when I ran across two of their texts. There was nothing inappropriate but all the "sweety, honey, wish you were here/I was there, oxoxoxo" puppy-love language, bugged me after hearing his deep masculine voice.

I have his name, I have his phone number.
How do I check this guy out? If he really is the minor in the picture how do I "legally" and privately confirm that? You can't exactly do a background check on a minor with no background. It might even be illegal to try.
On the other hand I have to know if this Kid Is a Kid or not.

If he is who he says he is I don't want to get "everyone" mad at me. Can I check him out without anyone knowing?
Thanks for any suggestions...