I saw it and it was an interesting episode. I thought the Carver was him, but why he did it came out of left field.
I thought the ending progressed way too fast. The Carver could have lasted another season, causing havoc in the area. The kidnapping angle was also out of left field. Maybe now Sean's son will become a plastic surgeon. lol
I guess we'll have to hope for a copycat Carver next season.
NCRM