Instead of going straight home after dropping Knox off, Azrael contacted Sandro.
They met in the usual spot and Azrael laid another request to his college friend. They discussed Azrael's plan to bust some of his father's businesses that underwent illegality upon construction.
It was buried under the table by his father's antics, with the help of his money and influence. It was easier to manipulate those in the seats in the government to pass and print business permits with just money.
Those businesses are also buried at the deepest part of the DV Group, so digging those specks of dirt would mean ruining the group's reputation, and worse, might end up in bankruptcy with the family getting thrown in jail.
So, Azrael needed to tread carefully. Sandro was one of the people he trusted most, so it wasn't a big deal to share his plans with him and have him take charge of gathering critical documents to blackmail his father.