After Tommy and Lance Vance killed Diaz in his mansion, Tommy began to think what to do next after that. So he disccusses with Lance, Ken Rosenburg and Avery Carrington about that. Lance told Tommy that he started to realise that not many people are not paying protection for this.
So Tommy headed to North Point Mall to smash the store's windows to pay protection for Ricardo Diaz. He seems that he could do this in 5 minutes.