Why were there no citation in a near fatal accident caused by wreckless driver?

i was in a recent accident and just learned that the driver who caused it was not cited for anything!! they were driving at wrecklessly high speeds through a stop sign at an intersection and tried turning onto the highway i was driving north on, their extremely wide turn due to high speed made them hit into my vehicle, ripping my front driver side tire completely off, and sending me into an innocent van who was stopped at the stop sign opposite to the direction of the wreckless driver. Why would there be NO citations for causing a near fatal accident! The sherrif's dept. said i would need to speak to the investigating officer who is out of the office until Friday. I am hoping to get some answers sooner.