Case was thrown out! Need advice?

Here's the deal:

I found CP on my friends iPad back a few months ago. I did the right thing and called police. They came over and asked him to show them where the iPad was… He gave them the iPad and brought it over to me to confirm it was his (he was staying with me in my home)… They asked me to show them what I saw, so I did.

Anyways, flash forward to the next day: I discovered his iPhone (which also had CP on it) and turned it into detectives.

Court was today, and they dismissed the case due to the technicality of the fact that the iPhone was obtained because I turned it in and also because I had showed the officers what I saw on his iPad (me acting as civilian police…)

This is absurd and an injustice. We did nothing wrong, and they obtained search warrants to do forensics on all the items they confiscated…

After the hearing, he walked away with a smirk on his face… The DA said she will do her best to continue to pursue the charges against him and will let me know if anything changes.

What can be done here?

Advice or experience needed! This man does not deserve to walk free!

HE won't be walking free for very long. This case has most likely been turned over to the FBI and any and all activity associated with his IP address and CPU serial numbers will be investigated thoroughly. His days of freedom are numbered and that smirk will be wiped off his face.