Castiel's Sixth Death (Season 15, Episode 18)\n\n A bit before Supernatural's series finale, that happened, after Castiel finally confesses feeling romantic love for Dean. Sadly, The Shadow dragging him to The Empty is the last fans got to see of Cas.

Flashing forward, we learn that Sam has a son that he's named after his late brother, and we watch him grow up. Then, in a scene mirroring Dean's last, we see an elderly Sam pass away, with his loving son nearby. Ultimately, Sam and Dean are reunited in Heaven, where they can experience peace at last.

Excalibur is the legendary sword believed to hold ultimate power, which can only be wielded fully by its true master. Whomever wields this sword will becomes near invincible. However, those who use it and are not destined for it, will be corrupted and ultimately destroyed by an all-consuming lust for power.

The man shot the woman, who was a vendor at Excalibur's concierge desk, then turned the gun on himself, Steiber said. The man died at the scene, and the woman was pronounced dead later at a local hospital.