Investigation

You park in a nearby parking lot and walk around the mansion from the sidewalk, looking for the owner, but you don't see him. You see a security guard at the gate, but not the owner. You're trying to find out if the owner had murdered your brother. That's if you can get inside, but how? Breaking inside? That's about your only choice, so you sneak around to the back of the fence and stand on a concrete block to see over the fence. You see two security guards guards guarding the backdoor. How are you going to get inside? You climb over the fence and sneak away from the fence. You made it over the fence, but what now? How are you going to get inside the big mansion without anyone knowing? There has to be a few dozen security guards around this damn place. What do you do?