第六十一章(10/10)

                                      “怎么能断定是凶手呢？有受害者，还有受害者的情人呢！”
                                                                                                                                                                “已查过他们二人的血，受害人永久纪子情人杉山的血是O型。”
                                                                                                                                                                “如果窗钩上的血是旧血迹呢？真要是旧血迹，那么跟这次案子就没有关系了吧？”
                                                                                                                                                                “从变色的情况确定，那血迹是几个小时之内留下的。”
                                                                                                                                                                “完了！”三上部长双臂交叉在胸前，“报界又要闹起来了。他们会说，你们逮捕的真是星期五的汉子吗，他不是还在从从容容地作案吗？难道连你，十津川君，你也认为星期五的汉子真的还在东京的市街上徘徊吗？”
                                                                                                                                                                “事实是这样的：上星期五，十月三日被杀的女人，在临死前曾与B型血的男人发生性关系，这次强奸未遂的凶手，血型也是B型。这两件事是事实。
                                                                                                                                                                如此继续下去，这个B型血的人还会再作案。那就是说星期五的汉子仍旧在东京都的街上徘徊。”十津川表白了自己的看法。