M I dont want some homeless mentally ill criminal or any criminal to target me for no reason

i dealt with some crazy stalker(s) who targeted me for no rational reason for twenty years. They say  that they have an opportunity-= meaning me being a victim, I have to get the courts, the police involved, This person lived on vose street,langdon twenty years ago, and said they heard me talk about the condo i was buying so they thought i was a victim- that is dangerous == the police needs to be involved==== these  criminals now are living near me again , still stalking me around ,and it is twenty years - they were living near me in 2002, 2003- because of jealousy ,envy and i do not know them - they may be  near me now