I bought a used Sprint iPhone 5. Previous owner jailbroke it?

I bought a used Sprint iPhone 5. Previous owner jailbroke it?

Added (1). I bought a used Sprint iPhone 5. Previous owner jailbroke it. I will remove the jailbreak. But since it was jailbroken in past, will I have trouble activating it with Sprint?

Added (2). I bought a used Sprint iPhone 5. Previous owner jailbroke it. I will remove the jailbreak. But since it was jailbroken in past, will I have trouble activating it with Sprint?

RETURN IT TO THE POLICE, DO NOT DEAL WITH CRIMINAL, THEY ARE DANGEROUS. JAILBREAK CRIMINALS ARE OUT FOR BLOOD. BE CAREFUL SWEETY