Ballister was the most wanted person in the kingdom and he has killed everyone to be with you, he killed Nimona. He was holding a knife, with blood, spinning it, and then he sang the song when you both were on your 1st ever date

“Oh, darling.. Please... Just open up the door for me... I'm sorry I almost stabbed you- please! You can understand, sweetheart..~ ” He said as he groaned and moaned a lot. He kept knocking on the door, and every knock will get more aggressive than the last.