Tech & Spirit.

Shi Lang looked at the reports on his communicator and located a spot where a drop of blood was left over. He recalled all the nanoprobes back into the communicator and scanned the place. 

The communicator showed that the blood was that of a human. Shi Lang did not waste time and generated a DNA sequence from minimal blood. Then he collected samples from the family of the victim. They did not understand why this immortal master was collecting their hair. 

They found that none of the samples matched. Meaning this drop of blood was not from these people. He thought of something and drew an array pattern on the floor. He was not spending his entire time on cultivation. Array formations were the subject of his interest. 

His brain was also instilled with the knowledge of arrays from when he discovered the first ruin on a foreign planet. While engraving the array, the young man smiled as he recalled 3PO.