Original sentence: AR-15 style rifles have been used in five of the ten deadliest mass shootings in recent American history and have come to be widely characterized as the weapon of choice for perpetrators of these crimes
Edited sentence: AR-15 rifles have come to be widely characterized as the weapon of choice for perpetrators of these crimes.Of the ten deadliest mass shootings in recent American history, AR-15 style rifles or other assault weapons  have been used in all six of the most recent