Once in front of the apartment room, Teren used his Great Spirit of Teleportation to get inside. He only uses it when passing through walls. If he used that Great Spirit to cover a large distance, it would need greater energy and many forces will be alerted again.
The Great Spirit of Mind-Altering is already too much. If Teren revealed the Great Spirit of Teleportation too, it would make the SSDA take him seriously again.
With that topic, the reason why Teren publicly killed two students in broad daylight was not just to go to the prison or scare Trisha Jane, but also, he wants to test the SSDA's tolerance. Just as he thought, they only sent the special division to control the media rather than directly deal with him.
