Complex sentence: In November 2012, three people, including Deleon, were arrested while driving to Mexico, where they were to begin their flights to Afghanistan, where they had planned to conduct jihad, and become shaheed.
Split into simpler sentences: In November 2012, three people, including Deleon, were arrested while driving to Mexico, where they were to begin their flights to Afghanistan. They had planned to fly to Afghanistan to conduct jihad, and become shaheed.