Question: who blew up the bus in veronica mars
[{'answer': 'Cassidy', 'provenance': [{'wikipedia_id': '13536263', 'title': 'List of Veronica Mars characters', 'start_paragraph_id': 13, 'start_character': 22, 'end_paragraph_id': 13, 'end_character': 29, 'bleu_score': 1.0, 'section': 'Section::::Main characters.\n'}]}]