Fear of gangster.please help me!!!!!?

[Kevin]

There is this gangster on twitter who is really dangerous. Now i don't exactly remember but i may have abused or offended him on twitter. Now when i check there are no messages or tweets as such, but it could be possible that i would have deleted them. He is really powerful and can get my address through the internet companies if he wants. Now i am in constant fear of him that he may send his goons to kill me or my family. There is no reason for me to abuse him, but i just fear i may have done so without any reason. Now should i take this lightly that such a big criminal would not have time for me, or should i take this seriously that he may feel offended and kill me. What should i do?