American Detective: Starting as a Rookie Cop in an American TV Show

Chapter 1410 Intermittent Explosive Disorder

Soon Red completed the reconstruction of the scene downstairs. Seeing Jack holding an evidence bag and others walking down the stairs, he began to tell the story.

"The murderer entered through the back window, first went into the kitchen and killed Sarah's boyfriend, then chased Sarah from the kitchen all the way to the living room, where a fight broke out between the two sides."

He then pointed to the living room porch, "Emily found a bloodstain here. Judging from the height, it should be the head."

Hotchner said in a deep voice, "The deceased Sarah has no injuries on her head. It seems that they were left by the murderer."

Detective Norwood immediately called in a forensic officer and asked him to take photos and collect DNA evidence.

Red walked across the hallway to the bathroom door and pointed out the scratches on the door frame to everyone, "Sarah took the opportunity to escape into the bathroom, but didn't have time to close the door.

The two sides stood at the door for a while, and it was obvious that the murderer was stronger than Sarah, so he forced his way into the bathroom and stabbed her.

As the bathroom door was opened, everyone looked down at the ground. There was a long bloodstain on the ground extending all the way into the bathroom, forming a large pool of blood outside the shower room.

"So Sarah died in the bathroom, and then the murderer spent a lot of time cleaning the blood on Sarah's body and changing her into clean clothes, just like in the previous cases."

Rossi pointed to the stairs leading to the second floor and said, "The plastic carpet in the second-floor corridor was found dumped in the backyard. It was covered in blood. The murderer didn't have enough strength to carry the body upstairs, so he dragged it all the way up with the carpet."

Jack showed the evidence bag in his hand to the others, "We found a few strands of brown hair by the bedroom windowsill. They should belong to the murderer."

Hotchner took the evidence bag and took a look at it in a well-lit place. He found that there were obvious blood stains on the hair, as if they had been pulled out by the roots. He couldn't help but think deeply.

"The bathroom on the first floor is the original scene, so if these hairs were not pulled out during the fight, then there is only one possibility."

Before Rhett could finish, Emily said, "She pulled it out herself."

Detective Norwood was confused as he listened nearby. “Why would the murderer do this?”

"Because she has no choice." Hotchner looked at Rossi, and seeing the latter nod slightly, he continued, "We can give the test."

"I'll gather the detectives and relevant personnel from the local police station right away." Agent Norwood had obviously heard of the BAU team's "magic profiling," and as he spoke he took out his cell phone and prepared to make a call.

Unexpectedly, Hotchner raised his hand to stop him. "Agent Norwood, please come back with us. We are only one step away from finding the murderer, if nothing goes wrong."
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"The CSI lab has completed the analysis of the hair found at the previous crime scenes. Although the subject's identity is not found in the criminal database, it can be confirmed that the subject is a white female, between 40 and 50 years old."

Emily put a report on the table.

At this time, the BAU team has returned to the Federal Building in Los Angeles. With the last piece of the puzzle complete, the identity of the murderer is about to be revealed.

Hotchner called Garcia to the big office, and everyone began to discuss the suspect.

Reid was the first to speak. "We believe the suspect suffers from a condition called 'intermittent explosive disorder', which usually occurs after a traumatic event. Patients often act impulsively and with extreme violence."

Seeing Agent Norwood's confused Muggle expression, Jack helped explain, "The specific manifestation in this case is that the suspect cannot control his anger, like a powder keg that may explode at any time.

We believe she had some conflict with all of the victims, whether it was just a quarrel over a tip or a dispute over the cost of repairing a car."

Agent Norwood was still puzzled. "Crimes of passion are not uncommon, just like road rage or drug addicts. I have handled many similar cases, but don't those usually break out on the spot? Our current suspect is obviously not that type."

"That's different, these are two different things." Emily showed the other party the strand of brown hair in the evidence bag.

"Our suspect also suffers from trichotillomania, where she pulls out her hair to relieve stress when she can no longer control her anger and has murderous thoughts.

So in daily life, she is seen as a reasonable person by others, and sometimes even appears to be a bit self-deprecating or a people-pleasing person. "

Reid continued, "But this kind of anger will not dissipate over time. Instead, it is like a tightly wound bowstring that may break at any time.

The anger and remorse after each murder made her feel like she had a split personality, and this was easily felt by her family members, so we believe that she was likely to have been hospitalized for mental problems.

Rossi looked at Garcia who was busy in front of the computer, “Garcia is pulling the list of patients who have been discharged from the mental hospital recently, focusing on those with schizophrenia.

It was not the drugs that helped the suspect curb her murderous impulse, but the environment inside. After leaving that environment, nothing could stop her murderous impulse. "

Agent Norwood suddenly realized that all the details that the BAU team had paid attention to before, combined with their measurements, seemed to correspond at this moment.

"So the suspect's anger did not subside over time, and any situation that might have offended her would have led to her murderous impulse afterwards."

Garcia looked up from his computer screen and said, "But I have checked all the mental hospitals and rehabilitation centers in California and the surrounding states of Arizona, Nevada, and Oregon, and there are no middle-aged white women who meet the test characteristics."

Jack looked at Red. "The murderer's stereotyped behavior shows that she had just been released from a public social institution. If it's not a mental hospital, is a rehabilitation center possible?"

"You suspect that the brain damage was caused by brain trauma?" Red held his chin and thought for a moment. "It is indeed possible. Damage to the frontal lobe of the brain can lead to emotional loss of control, which is also one of the causes of 'intermittent explosive disorder'."

"Got it, I need some time." Garcia lowered his head again, his fingers flying on the keyboard.

Rossi waved at Jack and said, "Let's go to the construction company where the most recent victim, Sarah McKinley, worked. Maybe the murderer is among them."

Jack was about to stand up when he looked towards the elevator door that had just opened outside the office. He saw a group of men and women with visitor badges and notebooks walking out of the elevator led by a public relations agent.

"What the hell is going on?" Rossi looked back and saw a familiar figure with a graceful figure in the crowd.

(End of this chapter)