A friend and their Troll

[Scott]

my ip adress is regestering as Crewkerne thats 35 miles away from where i am!
the only way you will get an address is get a court order and present it to the ISP to reviel the ip holders identity

This

Sorry Andy but your source would have to be working for the ISP in order to get the exact location of the IP. There is such a thing as a geolocation but often that can be just down to the nearest telephone exchange which can be considerable distance from the actual address. One person who was frequently trying to troll us here ended up having an IP address with a location which was 200 miles from where he turned out to live.

How is the person contacting you? Is it by Facebook, Email, etc.? If those are the actual threats and the family genuinely suspect this person would do it, then they should be going to the police

As said by bigcheeze, if he had much sense he'd be using a proxy or anonymising service such as ToR (The Onion Router) which would make it more difficult to pin him to a particular IP.

I doubt that the person has no ties to this family at all, as it's not often that kind of attack just comes out of nowhere. There must be a reason why this person has done it.

There are a number of things you can do using someone's IP address, if you're certain that is actually them. One troll we've come across failed to close remote access for his router