Lucky Discovered Mate

I played this game a while ago against a very good player and a good friend of mine (I will not reveal his name to protect his privacy). We usually beat each other back and forward, I happened to beat him this time. Often we see a game where a player sacrifices several pieces and comes up with a nice Mate. We tend to think that he or she planned it that way, sometimes that is true, but sometimes Luck plays a good role when the opponent makes the "right moves" for us. Many times we make sacrifices hoping that our plan works. That's exactly what happened here, I sacrificed a Knight to open avenues of attack to the enemy King, I was not sure it was going to work, but when my opponent made the wrong moves, I offered a Rook, he took it and the rest is History.