Great. The guy was a paranoid nutjob. Which Raph partly understood, being a paranoid cynic himself, but this went to a level a little beyond him. Clearly, he'd gotten the wrong idea assuming the library nerd's brother had to be at least similar levels of sane.

He bristled at the threat to his own brother, but kept his irritation over it under control (for once) understanding how easily this situation could escalate.

"I'm not going to hurt you and your brother's fine, and if you let me explain what's going on, then I can bring you to him, but I'm not coming out unless you at least lower the gun. Go ahead and keep it in your hand, but I'm not an idiot."