Complex sentence: Hartnett survived, despite being shot multiple times in the left arm, and was able to get out of his car to shoot the fleeing suspect, Edward Archer, who claimed that he pledged allegiance to Islamic State of Iraq and the Levant (ISIL).
Split into simpler sentences: Hartnett survived, despite being shot multiple times in the left arm, and was able to get out of his car to shoot the suspect as he was fleeing. The suspect was identified as Edward Archer, who claimed that he pledged allegiance to Islamic State of Iraq and the Levant (ISIL).