[iPhone 5s] Help

Options
Hi everyone,

My friend found iPhone 5s few month ago on the top of the garbage bin, the iPhone 5s is blocked by iCloud, he give me the iPhone and i check for find the mail of owner on the iPhone but on the Face time the mail doesn't appear... so i can't contact the owner, i try unlock the iPhone but i can't find anything on many website for unlock it. I check with IMEI on a site, and the iPhone has not been declared stolen or lost... do you have something, a site or a way for unlock it without Bill or Password ? (IOS 8, i make restaure and update the OS)

Best Regards.

Snow