Anton Lundin Pettersson is a 21-year-old student who attacked Kronan School in Trollhättan, Sweden, with a sword. He killed a teaching assistant and a male student, stabbed another male student and a teacher, and died later of the gunshot wounds he received during his apprehension. The second teacher who was wounded died in hospital six weeks after the attack, on December 3rd.

His web history showed that Anton was most likely a xenophobe and that his motives for the murders was racism. However, he did not show any displays of mental illness but have had suicidal thoughts before the massacre. In a letter he left, he said that he wanted to be killed by a cop.

He is known as the "Darth Vader" killer because he wore a mask that is similar to Darth Vader and said the character's line "I am your father".