This appears to be the account of his death (see the attached). He didn't die in Philadelphia, he died in a bus accident July 2, 1933 on a New Jersey highway on his way to Boston to attend a funeral. Evidently the newspaper got his age wrong but the home address of 806 S 8th street, Philadelphia was your Carlo Mazza's address in the 1920s city directories and in the 1930 census, correct?
Location of death from other newspapers:
NEW BRUNSWICK, N. J., July 3. One man was killed and twenty-one persons were injured when a bus and an automobile collided and plunged down an embankment on State Highway 25, at Sand Hills, N. J seven miles from here...
July 3, 1933 ; The Evening News from Harrisburg, Pennsylvania · Page 14
Carlos Mazza killed... bus overturned in a ditch near Sand Hill, on the Brunswick Pike, about 4 miles south of New Brunswick, NJ
Brooklyn NY Eagle
July 3, 1933