He won't leave me alone. How can I stop him?

[anarchlee]

So there's this guy that followed me on Instagram. He DM-ed me and said "You're really pretty" with a picture of himself. He was pretty cute so I just replied with "Haha thanks" and left it at that.
I did some stalking on his profile for a bit and found out that he lives in my city and that he's my friend's best friend. Basically he knew a lot of people I knew so I thought "Hey, I'm bound to meet him anyway so talking to him won't hurt"
A week later I put my snapchat up for my followers and he added me on Snapchat and I accepted. We got so caught up into talking but it was all mostly joking around and flirting from one side (his side). So eventually he became my bff on Snapchat and my friend saw. I get a text from my friend telling me that I should stay away from him because he's a flirt and I just ignored it because that friend had a crush on me and I thought he was just jealous.
Anyway, we started talking on insta-DM and our conversations became more serious.
One time he told me to call him and I didn't feel comfortable with giving him my number because we've literally been talking for only a couple of days. So he kept pressuring me into calling him and I made it obvious to him that I didn't want to. He still didn't get the message and it made me feel more and more uncomfortable and then I finally said "No" and he just replied with "Damn I wasn't expecting that." Since that day I haven't felt that comfortable with him because I also felt like he was telling me really personal things so that I can feel sorry for him. Plus his flirtations and the thing my friend told me stayed in my sub-conscience and I just had this bad feeling about him. I tried to distance myself more and more from him and then I get a text from this girl I know. The text was basically her telling me that someone told her to tell me to stay away from the guy I'm talking to. She didn't know who he was and I'm 110% sure she didn't know the guy I was talking to. She told me to stay away from him because he's a really bad guy and I trust this girl with all my heart. So that's when I got really scared. So I blocked him on snapchat, kik and instagram because I knew he was bad news.
Yesterday, I got 3 missed calls from a blocked number, a text from an unknown number and one message in my voicemail. I listen to the voicemail and it was him. He said "You blocked me on everything and I want to know who told you to do that right now. We were fine why would you do that? Who told you about me? It's pretty fucked up that you did that" and his tone was super aggressive. I panicked. I texted him back asking him how he got my number and he wouldn't tell me. He kept using the personal things I told him against me and it just seemed so weird to me that he was so paranoid about what people say about him. Eventually I blocked his number from calling me or texting me too.
After that, I called the girl who warned me about him and begged her to tell me who it was who told her to tell me to stay away from him. It was his best friend. He didn't want to be disloyal to the guy I was talking to by telling me directly why the guy is a bad guy. That's why he told the girl to not tell me who it was who told her. The guy's freaking best friend.
Today, the guy called me again from a different number 3 times again and left me another voicemail saying "For English, press one, for walking out of people's lives for no reason, press 2, if you don't give a shit, press 3, otherwise press 0" and hung up. And again, in the most aggressive voice ever. He sounded like a psychopath.
I swear I never flirted with him. Promise. I kept calling him "Bro" and made it obvious to him that we were just friends. This whole thing has literally been going on for 5 days. And he's already harassing me. I don't know what to do. I know you may think it's pretty stupid of me to think this way but I just don't know what to do. What if he takes it too far? What if he doesn't stop calling me? He literally lives 20 minutes away from me. He knows where I go to school. People have told me he's a bad person and I ignored it the first time. I ignored it the second time, but the 3rd time got too shady. I'm just scared. What do I do?

[Sweet]

My friends told me same stY awY from guy he's bD news but we dnt listen , so alwYs trust ur gut it tell u way to do ?

[Brunette]

omg wow I think he has mental problems or something cause usually guys don't do that. and if he was sounding aggressive like that and calling your number that's even more weird. you should just try texting him back and ask him to please stop calling you and your not looking for a relationship or anything at the moment. or maybeee hes not mental and is just really mad why someone would just do that out of the blue. because if someone just randomly blocked me on everything I guess I would be pretty pissed to and try to find out why. btw how old is he?

[Jasmine]

Woah, I never been in a situation like this before so I'm sorry if this advice is crap ahha. I think you should ignore him all together and don't contact him whatsoever. Hopefully he will give up and leave you alone for good. If this doesn't work and he is still harassing you, I think you should straight up tell him to stop and leave you alone. But I think the first option is better. Good luck hun!

[Paolo]

Ight relax a little so obviously this guy got some issues (thats an understatement). Just ignore him and and keep doing what your doing now. Don't worry about him finding you or like hell keep calling you it will pass. Just make sure that someone knows this is happening just in case,you know?Also make sure you defriended him on Facebook,twitter, Instagram......ect. I guess you now know to listen to friends now. What eves you learn from your mistakes right? shit happens