How did sisera die?

Sisera, the commander of King Jabin's army in the Book of Judges, died at the hands of Jael, the wife of Heber the Kenite. After fleeing from the battlefield, Sisera sought refuge in Jael's tent, where she offered him shelter. While he slept, Jael took a tent peg and drove it through his temple, killing him. This act played a crucial role in the defeat of Jabin's forces by the Israelites.