Oh Dani. I am so sorry for you and Matt. I've been through something similar, and it hurts. My brother in law stole my camera from my house and it had all my sons baby pictures from the day he was born on the memory card. I know exactly what you mean about getting back the pictures.
I still cry about it, but my husband said something to me that I think about and it makes me feel a little better so I'll share it with you.
"You know, it's heartbreaking that the pictures are gone. But you lived through it, so you have the memories. You have something no one can steal from you. And most importantly, you have a beautiful life and many more years to create more beautiful memories and pictures. So take MORE pictures and create MORE memories and stick it to 'em. "
You didn't deserve this, but everything happens for a reason. I am a very strong believer in karma so you can take a small bit of peace in knowing the people who did this are living atop a ticking time bomb of terrible times ahead. Hopefully they are found...but the chance is slim.
You may want to watch/notify local pawn shops of the stuff that was stolen...particularly about the haunted mansion bag. It's not a common item. Very easy to find. Look at Craigslist. Look on eBay.
Good luck hun