Strongly recommend you do this: #1: if the death index lists the city/county in which your friend died, get the area code, call directory information for that locale's public library. Tell them what you want & you're in business. #2: if the index does not provide the area where he died you can apply for this information by calling/writing to the Vital Records Office of the State Capitol. You'll have to provide the name & date of death. Sometimes they're skittish about non-first-degree relatives obtaining death certificates. Tell them that you don't want the certificate, just the area where he died. (which is listed on the certificate they have!)
Once you're on the 'phone with the local library, the Obit should say where he was buried (if not, it's on the death certificate). Then, it's on the telephone again with directory information...telephone # for St. Elsewhere Cemetery...Thank you! Call St. Elsewhere, give them a name & a date &, for a small fee, they'll tell you exactly where he's buried.
So there! You'll have the Obit & you'll be able to visit your friend!