Ten years ago, on January 7, 2015, brothers Saïd and Chérif Kouachi committed a terrorist attack on the Charlie Hebdo office in Paris, killing 12 individuals, including two police officers. Following their attack, they embarked on a 50-hour manhunt across northern France, culminating in a standoff with police at an industrial site in Dammartin-en-Goële. The operation involved 88,000 police personnel and modern tracking technology, ending with the deaths of the attackers. This article provides a detailed account of the events surrounding this tragic incident.