Complex sentence: Her award was presented by Mariane Pearl, the journalist, who had been present in Cambodia at the time of the kidnapping of Somaly's daughter, and who reported on the incident for an article that subsequently appeared in Glamour.
Split into simpler sentences: Her award was presented by journalist Mariane Pearl, who had been present in Cambodia at the time of the kidnapping of Mam's daughter. Pearl also reported on the incident for an article that subsequently appeared in Glamour.