One Tree Hill: Q's Death

Is Q's storyline completely finished on One Tree Hill DVD boxset? Are we ever going to find out who shot him, and will his shooter ever get caught? Q's whole death just came out of nowhere. Since his death no one has even mentioned his name or anything about the whole scenraio. Isn't anyone scared that there is a murderer on the loose in One Tree Hill DVD boxset? Clearly there must be more to hisOne Tree Hill DVD boxsetstoryline right?
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