Posting in Relationships as hoping I will get good advice in this topic...
The history is that I left my abusive ex nearly two years ago, after he threw a glass at me then went for me with a knife and threatened to kill our dogs. This was the final straw after months and months of emotional abuse and violent and verbal outbursts. The police also found some weapons in the house 
He was arrested for assault, bailed and re-arrested twice more for breaching his bail conditions (to stay away from me and not try to contact me) - he drove 20 miles to my friend's house and knocked on her door wanting to see me, then lied to the police that he was there (he got found out due to appearing on local CCTV, stupid idiot). In the end he was released, with no charges as the CPS wouldn't pursue it
gutting!
It had a massive effect on me as I had to give up my business (I worked alone in rural areas so didn't feel safe) and my home (he owned the house). I was homeless and unemployed, seriously weak and underweight from all the stress, but somehow re-built my life. I found a fab new job and a nice room in a friendly shared house.
Now the thing that bothered him most - as well as losing control of me - was that the police said I should keep both of the dogs, and at the time he agreed to this (the police told me he had said this). I've now got wind via his recent Facebook updates that I "have a debt to repay" and that he's intending to track down one of the dogs (that he considers to be 'his'). Not meaning to drip feed but I feel I have a massive duty of care towards both dogs as I witnessed him throw 'his' dog across the room once and he had some pretty horrible discipline methods
the police put all of this in my statement and also concluded it was in both dogs' interests to stay together with me.
For a while I was incredibly secretive about my new whereabouts - overly cautious about what I post on Facebook, no photos of local locations that might give away where I live etc (no mutual friends anyway but just to be safe). I also didn't want him to find out where I worked but recently I set up a linkedin account as I need it for my job so did put my employer on there, of course. I had avoided doing this for ages but in the end got sick of feeling like I was in hiding, plus quite a bit of time had passed. I now see today to my horror that he's set up an account and viewed my profile
I am now petrified about him following me home one day - I work not so far from him. Maybe I am over reacting but having seen how he doesn't let things go (eg breaking bail conditions) naturally I am feeling uneasy. He even once told me he'd kill his (probably lovely) ex-wife if he saw her again (now I see why she wanted to have zero contact with him or tell him her address). I consider him to be dangerous and don't trust him one bit, he is a big chap too.
I have a 25 mile journey home along rural roads and am now dreading the dark evenings drawing in...
I don't think there's anything the police can do, as he's not actually done anything wrong. But I still feel terrified. I don't know what car he drives these days so won't be able to look out for him easily as I Ieave work. I don't want to live in fear anymore 