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[The Unsolved Mystery of Brooke Baker: Anatomy of a Cold Case Investigation]-[137F]

Anatomy of Murder · B2 · 2021-08-25

True crime
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📋 Summary

The Brutal Discovery

On September 7, 1997, the quiet academic community of Vincennes, Indiana, was shattered by the murder of 18-year-old Brooke Baker. A promising journalism student known for her disciplined lifestyle, Brooke was found dead in her off-campus home by her brother, Braun. The crime scene was harrowing: Brooke had been sexually assaulted and stabbed approximately 11 times. Investigators noted that the body had been "displayed" in a crucifix position, a chilling detail that suggested a killer who sought either sexual gratification or the deliberate "shock" of the investigators.

The Forensic Hurdle: 137F

Former prosecutor Hal Johnston and his team immediately prioritized the collection of DNA evidence. During the autopsy, a semen sample was recovered and cataloged as "137F." For the investigators, this label became the primary focus of the case. However, the investigation faced repeated setbacks. Despite their methodical approach, every DNA sample collected from potential boyfriends and acquaintances resulted in a "no match" for 137F. The investigators were forced to grapple with the reality that DNA science in the late 90s was slow, and their primary suspect remained a faceless profile.

Navigating Rumors and Confirmation Bias

As the investigation dragged on, the small university town became a hotbed for gossip. Rumors circulated about a local landlord and even a potential "secret" story Brooke was investigating regarding a campus rape. Johnston emphasized the danger of "confirmation bias," where investigators might selectively interpret information to fit a preferred narrative. Despite the pressure to solve the case quickly, the team adhered to strict protocols, following every lead—no matter how "crazy"—to ensure that no evidence was overlooked that could later be exploited by a defense attorney.

Expanding the Scope and Behavioral Profiling

Eighteen months into the cold case, investigators turned to the FBI’s behavioral science unit in Quantico for assistance. The profilers provided a chilling assessment: the perpetrator was likely a white male, a university student living within walking distance of the victim, and this was likely his "first kill" due to the disorganized nature of the crime scene, such as leaving the murder weapon—a bent bread knife—in the sink. The profilers concluded that the posing of the body was intended for "shock value" rather than purely sexual pleasure.

A Possible Serial Killer?

With the investigation continuing to yield dead ends, the team looked back into the past, uncovering an unsolved murder of a young woman from years prior with strikingly similar circumstances. The realization that they might be dealing with a serial killer added a layer of urgency and dread to the case. As the episode concludes, the investigators are left to wonder if the only way to catch their predator is to wait for him to strike again, a haunting prospect that underscores the tragic reality of the "137F" case.

🎯Key Sentences

1
I grew up in a law family.
2
I had never thought in my life of being a policeman.
3
He has been a true public servant for many, many years.
4
One of the things I've done over the years is to go to the scene.
5
It was very, very violent.
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📝Key Phrases

1
take a step back
2
hit a dead end
3
run down every lead
4
cross your T's and dot your I's
5
know the ropes
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📖 Transcript

It was the case.
TV stations in Indianapolis, TV stations in Chicago carried stories about it.
For the first time I get a phone call one night from my sister in Texas and said were you just on TV?
I've got one defendant, two separate murders linked.
Now everybody's looking at me because if he's found not guilty, guess who gets blamed?
Me.

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