The B.A.U gathered up the members of the LAPD so that they could give out their profile.

"We have reason to believe that our UnSub is copying crimes seen in Batman media, mostly ones involving the Joker," said Hotch.

"So we have to look out for some guy dressed up like a deranged clown?" joked one of the cops.

"That wouldn't be too surprising," said Reid. "The UnSub might be so delusional that he probably believes he really is the Joker."

"His fixation with the Joker seems to be borderline obsessive," said Morgan. "Each murder is depicted to every last detail of the event he is re-enacting."

"You may have to preserve with caution if you see him," said Rossi. "If he really believes that he's the Joker, he might attack without warning."

After the profile, Reid felt a sharp pain in his mouth again. He let out a small yelp and started to rub his cheek.

"Tooth bothering ya?" asked Sheriff Mills, who saw Reid rubbing his cheek. "If you want, you can come with me to the dentist. I'm suppose to go there today for my annual check-up."

"No, I'm okay," said Reid. "Besides, we got a murderer to catch."

"We got this under control, Reid," said Hotch. "Go. You shouldn't suffer."

Even though Reid was a bit nervous about going to the dentist, he did not want to be in pain anymore, so he agreed to go with Mills.

Location: Local dental office

Reid and Mills walked into the dental clinic where they saw a young desk clerk sitting down typing away on her computer. She looked up and smiled at the two.

"Afternoon, Sheriff," she said. "You can go right in. The dentist is all ready for you."

"Thank you," said Mills as he walked towards the dental room while Reid sat down in the waiting room.

Mills entered the room where he saw the dentist, with his back turned, washing his hands in the sink.

"Have a seat, I'll be right with you," he said.

Mills sat down in the huge dental chair, took a deep breath and tried to relax.

"No offense, but I'm not too fond of these daily check-ups," he told the dentist. "They are so pointless. I take good care of my t.."

But before Mills could finish, an orange extension cord wrapped itself around his chest, pinning him to the chair. He then looked up and saw the dentist tying a knot in the cord to make sure he wouldn't get out. Mills then looked up at the dentist's face and saw a white coloured face with red make-up on the lips and green hair.

"Oh, come now, Sherriff," said the clown. "What is a better thing in this world than a nice, gritty smile?"

Back in the waiting room, Reid was looking over all of the magazines they had for him to read.

"Are there any magazines from this year?" he asked himself.

Just then, Reid could hear a small banging sound coming from a near by door. He got up and walked towards it. The door had the words JANITOR CLOSET on it. Reid slowly opened the door, only to see a man tied up and gagged lying on the ground. Reid quickly bent down and removed the gag so the man could talk.

"Some crazy guy dressed like a clown brought me in here and stole my dental coat," he said. "Said he had plans for my patient."

"Your patient wouldn't happen to be Sherriff Mills by any chance, would it?" asked Reid.

"Yeah," said the dentist. "How did you know?"

Reid had no time to answer. He quickly got up, drew his gun and ran to the dental room.

Back in the room, the clown quickly shut the door. As Mills was trying to struggle out of the chair, he got a good look at his attacker. There was something familiar about him.

"Hey, I know you," he said. "You're…

But before he could say anything else, the clown took a big piece of duct tape and placed it over Mills' mouth.

"Naughty, naughty," the clown said. "Move around like that and doctor won't give you a lollipop."

He then quickly walked away only to come back with one hand behind his back. He then took a look at Mills' face with disgust.

"Tsk, tsk. I don't like the looks of this at all," he said before pulling out a large power drill from behind his back. "I'm afraid everything will have to go."

He then let out a wicked chuckle as he turned on the drill and slowly moved it towards Mills' forehead.

All of a sudden, the door swung open and Reid came in pointing his gun at the clown.

"FBI! Put down your weapon," he shouted.

The clown then threw the drill at Reid, who quickly ducked out of the way, causing the drill to crash against the wall. The clown then rammed into Reid, causing him to fall to the ground, and ran off. Reid quickly got up and shot at the clown, only for it to hit a plant. He then ran after the clown, who went through the fire exit. Reid fired another shot, which shattered the glass of the door. He quickly ran outside only to discover that the clown had gotten away.

Reid then took out his phone and called his team.

"Hotch, it's Reid. The UnSub tried to attack Sherriff Mills. He is all right, but the UnSub got away. I need you come down here right now."