Complex sentence: Officer's eventually caught up with the men and chased them down in a recorded high-speed pursuit which resulted in a violent crash where one of the suspects was ejected from the vehicle and became pinned and trapped under the van.
Split into simpler sentences: Officer's eventually caught up with the men and chased them down in a recorded high-speed pursuit which resulted in a violent crash. One of the suspects was ejected from the vehicle during the crash and became pinned and trapped under the van.