Vocalist Connor Garritty says Mr. Murder was written as a surprise for his best friend Matt, before Matt's death last year. Garritty says: "Mr. Murder was written about my best friend Matt who passed away last year. He was one of the most influential people for me growing up and throughout my music career.

"The song was originally written in tribute to him and his unbelievable strength and passion for life. He left us unexpectedly before I could show him the song. It was supposed to be a surprise, almost a thank you to him for helping in more ways than he knew."