Question: who killed shane in the walking dead tv show
[{'answer': 'Rick', 'provenance': [{'wikipedia_id': '34556750', 'title': 'Better Angels (The Walking Dead)', 'start_paragraph_id': 2, 'start_character': 355, 'end_paragraph_id': 2, 'end_character': 359, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '34556750', 'title': 'Better Angels (The Walking Dead)', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 398, 'bleu_score': 0.9684940092844061, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17783538653694031053}, 'section': 'Section::::Abstract.'}]}]