Brimstone

Bill went through the records and that was indeed true.

"But Sam, killing an innocent old woman? We kill people based on the contracts we get. For the first time we are going out of line to kill someone. The reason behind killing Excalibur is simple, he killed Sarah and we want to avenge her death. But dragging his innocent mother into all of this. I am not sure about it" 

Bill calmed down and understood her perspective. Therefore, he calmly put his point forward.

"Dad, why did Excalibur kill my mom?" Samantha questioned him; she was clearly fighting her tears.

"Sam, don't do this"

"Answer me" Samantha shouted at her dad.

"To avenge me"