Thanks a lot guys. Sorry, I wasn't around for a few days. Yes, that is the car, unfortunately. Had an alarm with an immobilizer but no one heard anything. I removed the mspec front lip, cuz it was a bit broken and i was going to fix it. Police came and tried to find some finger prints but they couldn't find any.
Thank you so much everyone, and special thanks to V8skylineMAN for the pictures and special effort to take care of the car.