Murrell side-stepped into a gap with 14 minutes left on the clock, Dobson's drop-goal made Quins' task all the harder and Fisher crossed in the dying seconds.
Richards claimed the fourth try after pouncing on Thomas Leuluai's kick while Calderwood had the simple task of wrapping up the win with 10 minutes left on the clock.
Working around the clock for six weeks, sifting through thousands of agent reports, spy-satellite photos and signal intercepts, the task force finally pinpointed the 31-year-old Saudi-born Palestinian in a villa near Faisalabad, Pakistan.