[JURIST] Two Somali men pleaded guilty [press release] Monday to charges of piracy for their role in hijacking a yacht, which resulted in the deaths of four Americans. The guilty pleas by Jilani Abdiali and Burhan Abdirahman Yusuf join those entered Friday by Mohamud Hirs Issa Ali [JURIST report], Mohamud Salad Ali and Ali Abdi Mohamed in the US District Court for the Eastern District of Virginia [official website]. The men have all admitted to engaging in piracy for financial…