Question: whos jack the ripper in gotham by gaslight
[{'answer': 'Jacob Packer', 'provenance': [{'wikipedia_id': '2315022', 'title': 'Gotham by Gaslight', 'start_paragraph_id': 5, 'start_character': 273, 'end_paragraph_id': 5, 'end_character': 285, 'bleu_score': 1.0, 'section': 'Section::::Plot summaries.:"Gotham by Gaslight".\n'}]}, {'provenance': [{'wikipedia_id': '2315022', 'title': 'Gotham by Gaslight', 'start_paragraph_id': 10, 'start_character': 0, 'end_paragraph_id': 10, 'end_character': 504, 'bleu_score': 0.9236799386190421, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14949804035418504644}, 'section': 'Section::::Plot summaries.:"Gotham by Gaslight".\n'}]}, {'provenance': [{'wikipedia_id': '2315022', 'title': 'Gotham by Gaslight', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 0, 'bleu_score': 1.0, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14949804035418504644}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '2315022', 'title': 'Gotham by Gaslight', 'section': 'Section::::Plot summaries.:"Gotham by Gaslight".\n', 'start_paragraph_id': 10, 'end_paragraph_id': 10, 'meta': {'evidence_span': ['next victim. Batman chases the Ripper throughout Gotham and the two eventually come to a stop at the grave of Thomas and Martha Wayne, where it is revealed that Jacob Packer is the Ripper.', 'it is revealed that Jacob Packer is the Ripper.', 'Batman interrupts the Ripper as he is about to claim his next victim. Batman chases the Ripper throughout Gotham and the two eventually come to a stop at the grave of Thomas and Martha Wayne, where it is revealed that Jacob Packer is the Ripper']}}]}, {'provenance': [{'wikipedia_id': '2315022', 'title': 'Gotham by Gaslight', 'section': 'Section::::Plot summaries.:"Gotham by Gaslight".\n', 'start_paragraph_id': 11, 'end_paragraph_id': 11, 'meta': {'evidence_span': ['Packer confesses that he is the Ripper', "Packer reveals that he hired an assassin to kill Bruce's parents. Gordon appears at this time with the police and Batman tells them to arrest Packer. Packer confesses that he is the Ripper and tries to kill Batman"]}}]}]