If someone could kill the captain, it should be the low tide time, or, there is no chance to get close to there. However, there are two low tides during one day, one in the daytime, and the other at night. Now it is 9 a.m. at low tide, and the captain reached here on the afternoon of yesterday. Therefore, only one chance for the killer to get close to the captain, which is 9 p.m. yesterday<!--editpost--><br><br><br><div><font class='editinfo'>此帖由 gongjian701 在 2006-03-15 12:43 进行编辑...</font></div><!--editpost1-->