One of my best friends is threatening to kill himself. He turned up on my doorstep last night with a goodbye letter, but I managed to catch him before he drove off. He is now saying it will happen on Tuesday if he feels no different in the mean time. What do I do? I can't lose him, if he goes, I won't be able to handle it, and I will die too. I'm really freaking out, I can't stop shaking, I haven't slept. I have absolutely no idea what to do! Please, please help me.