Omg help ! What should I do ?!?

I seen this gangster looking guy in front of my house throwing up gang signs to the queenns and I dont want to call the cops cus that gangster might come back and kill me or rob my house ! And if he found out it was me hes going to tell his friends to rape me or something ! And p.s. I think I had slept with one of his brothers because he had a familiar face , and voice like his .