Thursday, May 3, 2012 Cambridge, England 7:20 AM (BST: British Summer Time)   Megan Howell closed her eyes as the warm water of the shower washed over her.  The twenty year old was in the house owned by her current boyfriend, Robert Harrow, who was finishing his graduate work at the University of Cambridge.  Megan was nearing the end of a year studying economics at Cambridge as part of a study abroad program through her school back in the States, Yale University.  Though she had her own apartmen