A chainsaw is a mechanical saw used for cutting up wood. It is used by lumberjacks and landscapers who need to cut through thick tree trunks, branches and timber. It is also used to help chop up firewood. A chainsaw typically uses a two-stroke gasoline engine and a cutting chain secured to a guide bar on top of rollers.
Because of its efficiency and destructive potential, a chainsaw may also be utilized as a murder weapon. This actually happens more often than one one would think. The most classic example of such a tool being used as a weapon is in the Texas Chainsaw Massacre film series, where Bubba "Leatherface" Sawyer, terrorizes young Sally Hardesty with a chainsaw and uses it to kill her invalid brother, Franklin.
In the remake of The Texas Chainsaw Massacre, Thomas Hewitt used a chainsaw to chop off the leg of a fleeing boy named Andy. He later used it to skewer a girl named Pepper as she had fallen onto the ground. His next chainsaw victim was a man named Morgan, whom Thomas impaled through the back. Following this massacre, Hewitt's chainsaw was recovered by Federal and state law enforcement officials and entered into evidence.
In the 1981 slasher film, Friday the 13th Part 2, the character of Ginny Field used a chainsaw to chop up some wood. She later used it to defend herself against deranged murderer Jason Voorhees, and was able to force him to retreat.