Continuity mistake: When the machine gun has finished firing, Kenny's body is shown in the remote controlled armchair with his head turned to the left. When the shot cuts to an overview angle, his head is facing directly forwards. (00:45:15)
Continuity mistake: When Jesse has finished strangling Todd, in the shot of Jesse snapping Todd's neck, Todd has his right hand placed over his chest. When the shot cuts, Todd's right hand is at his side. (00:46:42)
Chosen answer: It is part of the ritual for la Santa Muerte. It is a sign of humility and sacrifice.
djm