Complex sentence: Dean Paul (November 17,1951--March 21,1987; plane crash), Ricci James (born 1953) and Gina Caroline (born 1956), whose marriage made Martin the father-in-law of The Beach Boys' Carl Wilson.
Split into simpler sentences: Dean Paul (November 17,1951--March 21,1987; plane crash), Ricci James (born 1953) and Gina Caroline (born 1956). Her marriage made Martin the father-in-law of The Beach Boys' Carl Wilson.