His entire face lit up when he was in the middle of a classroom discussion.

WSJ: Journalist and author Haynes Johnson dies at 81

Detectives with Scotland Yard's anti-terrorism branch spent part of Sunday interviewing Michael Rimmer, a former high school teacher who described Abdulmutallab as a "very devout" Muslim who had once expressed sympathy for Afghanistan's Taliban insurgency during a classroom discussion.

CNN: STORY HIGHLIGHTS

The Manhattan Virtual Classroom is a web-based course management system that includes a variety of discussion groups, live chat, areas for the teacher to post the syllabus and other handouts and notices, a module for organizing online assignments, a grades module, a surveys module, and a unique, web-based email system open only to students in the class.

UNESCO: Free and Open Source Software for E-learning