friends and I plan on filing for sexual assault and rape

 I thought I was the only victim but I had also got into contact with another girl and her fiancé and it seems that she was a victim as well and our stories pretty much match up. We were either drugged, drunk, and without consent our assaultant performed sexual acts and once we woke up, he told us lies which he though we would believe. Obviously, which were flat out strange and confusing. 

 I told my best friend of what happened and to be cautious since she lives in the same neighborhood as him, along with my spouse, my mother, and my supervisor at work. I honestly wanted to put this behind me due to him getting rid of the evidence, however he randomly dropped by my job because he said he couldn't get in contact with me( I blocked and deleted his number ). I asked for him to leave and he didn't. My supervisor told him to leave the store immediately for my own safety. I called my husband and he called my assaltant personally and he left the premises before my husband was able to show up.

  Later that evening my husband told me he made a Reddit page saying that "my best friend's husband told me to leave his wife alone and not to bother her anymore" which got a lot of negative reviews and he deleted (more evidence gone) and apparently he was somehow able to get my email and send me a threat along the lines of "I think I know what's going on and I would hope that it's some kind of sick joke or something to have to do with your mother. I'm hearing from mutual friends ( we don't have any, at all so I know he's lying. The only person that would have confronted him about the issue would be my husband, and he never stated why I wanted him to leave me alone) that you're going around and telling lies. I would hate to take legal action but if I have to I will sue you for defamation if you don't put an end to your nonsense. Now I addressed this issue to my mother and she agrees that I should no longer be in contact with you. If this continues I will press charges" 

  My friends have pretty much been black mailed the same (one he said that if she didn't break up with her boyfriend and get an abortion he would report her to the police for physical and verbal abuse and the other blackmailed by using a picture he had took of her while blacked out), but for some reason, he's directly targeting me. I'm not sure if it's to destroy my happiness because he's jealous, or if it's because my mother personally confronted his mother for trespassing her property (something else he can be charged for) and breaking into her home while neither of us were present, and then hiding thinking that he wouldn't be caught. 

 All of these incidents happened within a year apart up to now. All we have as far as evidence is our word and personal experience.... one of my friends has exchanged texts with him trying to get information from him. And from that information it seems like he's getting "lawyers" to directly target me. I let my husband know and hopefully since we are military, we can get an upper hand on our side....

We've typed out our stories with what we could remember while we were pretty much incoherent of what was happening to us and included the blackmail.....I just hope that our experiences and similarities in our stories are able to show that it's proof.... he also tends to tell others lies that makes us seem like we are telling stories.... he's very manipulative 

If any of you guys have been in similar situations and can offer some advice we would be grateful.... we are hoping that we can get some sort of closure