He originally intended to kill Liu Zhanhuo.
He only extended this person's life for a few hours to interrogate him.
Now that this person is of no value to him, naturally, he will kill him with a punch.
Su Que activated the inner power heart method of the Nine Yin Corpse Claw, absorbing Liu Zhanhuo's Death Qi.
Once Liu Zhanhuo's Death Qi was completely absorbed and he had become a dry corpse, Su Que secured Liu Zhanhuo's saber and the visualization diagram beside him.
Then, he unleashed Myriad Poison True Qi, enveloping Liu Zhanhuo.
In just a moment, Liu Zhanhuo's corpse was corroded completely by the Myriad Poison True Qi.
Afterwards, Su Que discarded Liu Zhanhuo's saber to the other side of the cave.
To prevent waking up the Daoist from True Profound Sect, who upon seeing Liu Zhanhuo's saber would realize he killed Liu Zhanhuo and out of fear, refuse to answer properly.
Su Que stacked and tucked the twenty-four visualization diagrams into his garment.
