file = bz2.BZ2File(filepath, 'rb')

for content in file:
    data = content.decode('utf-8')
    data = json.loads(data)

Error:
JSONDecodeError: Expecting value: line 1 column 1 (char 0)

I believe because the data read has filename, something, and author name appended in front of it. E.G.
southwestall201610.json0000664000175300017535621120435713153521447016434 0ustar  someonesname{"favorite_count": 0, "place": {"url": "https://api.twitter.com/1.1/geo/id/06168d1feda43857.json",........"}