Arrested Andrew and Sophia

"Hey Daniel, I have some good news." Patrick sounded cheerful.

"What is it?" Daniel asked him curiously.

"I just arrested Andrew and Sophia"

...

One day ago [Wednesday Night]

Patrick was standing in the gallery and was smoking a cigarette, he was frustrated as there was no lead to the case he is working on. The only good thing right now was his colleague is now safe and is out of danger but on the other side, although he has the culprit's fingerprints and knows who the murderers are he was still not able to get a hold of them.

One thing was clear, Andrew and Sophia are the murderers but who they murdered and why they murdered him was not clear.

Their previous victims were all old rich people but the one murdered recently was a different victim so it was obvious that they didn't kill him for money but it was something else about this victim that triggered them.