How to get someone do admit they stole something from you?

Make that 2 somethings… I originally lost an iPhone that i had kept in my locker. So i waited about a week and it didn't turn up. I figured it could have dropped out and so i didn't pursue it. My dad offered to get me another because we had an upgrade. So I left that one in my locker (by accident this time) and when I checked at the end of the day it wasn't there! 2 iPhones in two weeks. I have a pretty good idea who might have taken them but I'm not positive. He's taken other peoples phones but always returned them within like 3 days. I've talked to him and he's very suspicious. He has mild autism and the suspiciousness might be a part of the social disorder. Any way I'm trying to get him to admit it. As of now, I have offered to pay him and said that no questions will be asked. Each time he has changed the subject. I'm really frustrated by the whole thing. I have no idea what to do. I really appreciate the actual help. Thanks.

Added (1). My question is how to get proof.

Added (2). Haha sorry to keep adding stuff. But the office has been notified and because i didn't have a lock (which they sell for $5 and you can only use theirs) they are not liable or concerned.

Why isn't my computer recognizing my iPhone 5 charger cable?

I just got a brand new, Apple branded Lightning cable in the mail. I plugged it into my wall-charger plug, and everything went fine. I charged the phone completely. I recently got new albums on my iTunes, and I wanted to sync these to my phone. However, the cable is not being recognized by my phone. I tried again to see if it was the cable by plugging it into my wall charger, and the wall port is working fine. The problem is my computer recognizing the cable. I've already gone to the apple forums and followed some steps that were supposed to help the cable be recognized, but nothing helped. The phone and the cable are not being recognized on my device manager either.

How to transfer My iphone 3 apps with all its data to my new iphone 5?

I have some games that i bought on my iphone 3. And they still have progress in them, also i paid for some special stuff on there so i don't want to loose any data.
Is there a good and safe way on transferring apps from your old phone to your new one?
I looked at a lot of stuff online but either they don't make sense, or they are using i cloud and my iphone 3 doesn't have icloud and i'm scared to update it so it can have it because last time i updated my iphone everything was deleted.
I also tried this iexplorer method, but after i updated my itunes it stopped working, so i'm stuck.
Someone help? Is there a way to transfer my apps and their data to my new phone so theyll have everything on there.

IPhone 4s automatically using data

Okay, So I don't have any apps open i close all of them (double click home) and when i check my data usage it tells me i'm using more and more everyday. (The data goes upwards when it is doing nothing)
Is there a way I can stop my phone from using data whenever i'm not using it or when all the apps or closed? Than you.

I dropped my iPhone in water. Sound won't work! What to do?

I have a shelf on my desk and my phone was sitting on the shelf. Somehow my phone was knocked down… Into my fish tank!
Now the speakers don't work.
What to do?
P.S. I've tried rice… It takes a very long time. I'm kiinndaa desperate. Short methods please?
Thanks (:

Added (1). Yes my fish is okay (:

Added (2). Now it won't turn off!

Cydia won't open on my iphone 4s?

I just did the "evasi0n jailbreak" to my iphone 4s, it's updated the most recent iOS 6. After i finished the jailbreak, i tried to tap on the cydia app & it's not doing anything.

How come my iPhone won't play videos?

I'm currently running 6.1 iOS and I've seem to keep getting an error saying "playback error" and I have jail broken my phone if that effects anything but it shouldn't because it has worked great until the other day. Please anything will help