Faulty reasoning signals

• Confirmation Bias - 8.8% (75 hits)
• Anchoring Bias - 3.1% (26 hits)
• Availability Heuristic - 18.1% (154 hits)
• Representativeness Heuristic - 0%
• Hindsight Bias - 2.9% (25 hits)
• Overconfidence Bias - 5.2% (44 hits)
• Framing Effect - 6% (51 hits)
• Loss Aversion - 4.1% (35 hits)
• Status Quo Bias - 0.8% (7 hits)
• Sunk Cost Effect - 0%
• Optimism Bias - 5.8% (49 hits)
• Pessimism Bias - 10.6% (90 hits)

Article text

Mystery of the Boston nanny, 20, who won the lottery so moved to America but was then murdered and chopped in HALF after a night out

Boston has been haunted by the unsolved murder of a nanny who was found chopped in half after a night on the town.

Karina Holmer, a Swedish au pair, disappeared outside a nightclub around 3am on June 23, 1996.

About 12 hours later, only the upper half of Holmer's body was discovered in a dumpster behind an apartment building by a homeless person.

The murderer and the other half of her body have never been found.

Holmer, who was only 20 years old at the time of her death, came to the US in the spring after winning the lottery in Sweden.

She won 10,000 crowns in March 1996, about three months before she was found dead, according to Cold Case.

Several reports state that Holmer told her father, Ola Holmer, before boarding a plane to the US: 'I hope that I'm doing the right thing.'

Who Killed Karina Holmer, a website dedicated to the murder, states that she found a job with a family in Dover, Massachusetts, through a placement agency.

Karina Holmer was a Swedish au pair who was murdered in 1996 when she was 20 years old after coming to US with lottery winnings

Only half of Holmer's body was discovered in a dumpster after she was last seen intoxicated walking a lone after a night out in Boston

Holmer would often spend weekends in Boston, about 25 miles south of Dover, where her host family owned a studio loft where she could stay.

Before the cruel murder occurred, Holmer was out at the Zanzibar Nightclub with a group of friends, many of whom were nannies.

Holmer had a fake ID and would often be out until the early morning hours drinking.

Her trip of a lifetime seemed to take an unexpected turn when the letters she often wrote to her family back home became increasingly bleak.

Cold Case reported that she expressed how she wanted to return home and also wrote a very ominous letter to a friend that read: 'Something terrible has happened.

'I cannot tell you right now what it is, but I will tell you when I get home.'

The night she went missing, she was separated from her friends as she was heavily intoxicated and asked to leave the bar they were at.

Holmer was last seen walking on Tremont Street between Boylston and Park streets.

After that, the story is not exactly clear, as witnesses suggested several theories about Holmer's last moments.

Some said they saw her in a car while on Boylston Street.

Others said she was interacting with a homeless person.

Another suggested that she was spotted talking to a neighborhood local, who later committed suicide.

Officials interviewed more than 300 people and several theories have floated around what might have happened to Holmer that tragic night

More than 300 people were interviewed in the case, but the only pieces of evidence were a partial fingerprint found on the garbage bag she was tossed away in and rope marks on her neck, Celebrate Boston reported.

Investigators believe she likely died by strangulation with a rope or cord and was then cut in half with some sort of saw.

Officials were also never able to locate a crime scene, which they believed would have been gruesome and thoroughly cleaned in an effort to conceal the heinous murder.

The homeless man who found her was going through the two dumpsters and discovered half her body stuffed into black trash bags.

Investigators said that her body had been washed before being wrapped and dumped.

Boston Police Superintendent Paul McLaughlin told the Boston Herald that every tip has been 'run to ground' and that authorities are still searching for both who is responsible and the bottom half of the au pair's body.

At the time, Holmer had been dating a Boston police officer, but he was ruled out as a suspect.

'We urge anyone with information, no matter how little it is, to call,' said McLaughlin.

'There has to be someone else who knows what happened,' he added.

The superintendent also explained how the case created a sense of 'anxiety' for parents throughout the city.

Holmer's father, Ola Holmer, told reporters in the months after her killing: 'It affects us in everything we do, in every step we take.

'It's the first thing you think of when you wake up in the morning and the last thing you think of when you go to sleep.'

Her family was forced to return to Sweden with only half of their daughter after no arrests were ever made.

Former Suffolk DA Dan Conley, who was a city councilor when Karina's remains were discovered, told the Herald: 'She came to Boston with lots of hopes and dreams.

She was a young and beautiful woman, but the brutality of it all.'

'As DA, our cases are always open.'

McLaughlin urged anyone with information to call authorities, even anonymously, at the tip line: 1-800-494-8477.