Syphilis
No, it wasn't schizophrenia depression. He died from syphilis and pneumonia. Back then, people who contracted syphilis were placed in asylums because they were considered crazy. I can only imagine how he was treated there.
Syphilis can cause sores around the mouth.
Cause he had syphilis
Hypocalcemia can cause depression
Spirochetes cause Lyme disease and syphilis, among others.
Music can't actually cause depression, seeing as depression is a medical disease, but it can cause a person to BE depressed.
Depression is a risk factor for stroke but depression does not cause stroke per se.
Many things can be the cause of depression. Questioning your own sexuality or the sexuality of someone close to you can cause depression also.
Research psychologists study the cause of manic depression.
Most STDs don't cause death. Excluding HIV, syphilis can be fatal.
Chlamydia does not cause death or heart problems. Untreated syphilis can do so.