Jack Kerouac's muse, Neal Cassady, died on this date in 1968 at the age of 41 (4 days short of his birthday). Circumstances surrounding his death seem unclear, but you can read what his wife, Carolyn, has to say about it here. Neal's death must have come as a shock to Jack Kerouac, who lived an additional 1 year, 8 months, and 7 days before his own untimely death at the age of 47.
Now, 187 is slang for murder, and I have posited here on The Daily Beat in the past that I wonder sometimes if Jack wasn't, in effect, technically "murdered" because of the beating he took not long before he died.
Anyway . . . RIP, Holy Goof.