Background
Control was a clone shock trooper stationed at the Jedi Temple on Coruscant. His main job was under wraps with his main focus being to do anything Palpatine asked of him to do. He holds Jedi to very low regards. More specifically he had a bitter hatred for them knowing very well that some Jedi only used clones as meat shields and cannon fodder. When order 66 came to fruition he had no reason to fight the order. He immediately went to where a Knight and his Padawan were at, and burned the Padawan alive in front of the Knight as the Padawan tried to protect the Knight in mere seconds. He chased down and blasted a good sized hole through the Jedi Knight and burned the body afterwards with his incinerator.
Motivation
Kill all Jedi.