He decided to see if the other safe houses had been compromised too. So he went around the city spying on them.
On the surface, the other four safe houses were still preserved, as the security and surveillance systems he had installed in them didn't notice any intrusion. But nothing could be certain where heroes were involved. He had to see what was going on with his own two eyes.
He didn't approach the buildings where the safe houses were. That would only get him in trouble if they had already been compromised. He only strolled outside of them while watching those who entered and left.
He didn't notice any hero or increase in police surveillance around the area. But he still didn't approach the safe houses.
He got a new safe house first and changed his look. Then he went to look at the compromised safe house.