Can I Trace somebody's IP address on twitter?

I got a threat from a fake account on twitter. I'm virtually sure its this chick United Nations agency hates Maine, however in fact she denied it, however I still assume it had been her, and that i need to prove it. however am i able to trace somebody's informatics address from twitter and you recognize, verify UN agency the person truly is? however am i able to do this? and wherever am i able to notice the twitter informatics address?? PLEASE facilitate.