Find the brief that matters.

Investigation underway after César Gastelum killed during TikTok broadcast

• César Gastelum, 25, was shot in the head while broadcasting live on TikTok in Culiacán, Sinaloa.
• The attack occurred outside a fast-food restaurant as Gastelum and two friends took part in a delivery-outfit challenge.
• Two helmeted people on a motorcycle approached, and the passenger fired before both left the scene.