Rand and Gallador follow at a distance.
You sense Tanic's fear clearly, clearer than you've sensed anything recently. You follow it and the trail he left behind, more bodies and destruction. He was running and shooting at anyone that followed. You find Geful's butler splayed out on the floor, a bolt through his heart.
The trail guides you to an open window. Tanic has gone to the roof.
"All it does is amplify the already powerful emotions that fuel the Dark Side," Rand says. "It then channels that into a sort of euphoric sensation. Duke Akarti used it and many like it to addict young Force-sensitives to the Dark Side."
Rand gestures to Tanic.
"He fell years ago, Rianna. I am merely helping him step past his denial."
"No!" Gallador fumes. "I cannot let you destroy such a precious artifact! The Staff is one of the last of its kind, a rare talisman of Sith power!"
"Go ahead," Rand eggs you on. "Try to take it."
Tanic does not respond to you. You can sense his fears keenly; it is a fear of loss that drives him. He is a coward at heart.