Vestian Dynasty - The Weapon That Killed Uldren? (Petra Venj - Destiny 2: Forsaken)

Petra invites us to enter the Dreaming City and watch her back. She also gives us her trusty sidearm. She references the mission in which Uldren is killed (Nothing Left To Say) and stops just short of saying this weapon killed Uldren. DESTINY 2 https://store.playstation.com/#!/en-gb/tid=CUSA06172_00