The case has been solved—by a very sober accountant from Dallas named Hugh Sprunt.
Read and learn, read and learn:
http://www.whatreallyhappened.com/RANCHO/POLITICS/FOSTER_COVERUP/TEXTS/vwfhs75a.html
Hint: There was no bullet because Vince was murdered with an ice pick.
By Mr. Plum in the Kitchen.