Question: what happened to the original singer of sublime
[{'answer': 'overdosed on heroin', 'provenance': [{'wikipedia_id': '229298', 'title': 'Bradley Nowell', 'start_paragraph_id': 15, 'start_character': 725, 'end_paragraph_id': 15, 'end_character': 744, 'bleu_score': 1.0, 'section': 'Section::::Biography.:Death.\n'}]}, {'provenance': [{'wikipedia_id': '229298', 'title': 'Bradley Nowell', 'start_paragraph_id': 15, 'start_character': 0, 'end_paragraph_id': 15, 'end_character': 1045, 'bleu_score': 0.943769299669827, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13434718324723024986}, 'section': 'Section::::Biography.:Death.\n'}]}]