Fun with Murder

Here’s a little fun exercise that examines people’s motives for killing. This was a test used by a famous American psychologist to test if one has the same mentality as a killer. Many arrested serial killers took part in the test and answered the question correctly.
Read this question, come up with an answer and then scroll down to the bottom for the result. For bonus points, identify the “famous American psychologist” who allegedly created this test.
“A woman, while at the funeral of her own mother, met this guy whom she did not know. She thought this guy was amazing, so much her dream guy she believed him to be, that she fell in love with him right there, but never asked for his number and could not find him. A few days later she killed her sister.”
Question: What was her motive for killing her sister? [Give this some thought before you answer?)
Answer: I’m not going to give you the answer. It’s cheap. It doesn’t make any sense if you give it any kind of thought. And I’ve been unable to find any kind of reliable information on the origin of this test. Nor have I found any kind of supporting information, such as how many serial killers were tested, how many of them answered correctly, or what that even means.
Instead, here are some funnier, more plausible alternate answers:

• Unlike the psycho woman at the funeral, her sister was also taken with the mystery man, but the sister had the good sense to get the man’s phone number. The psycho woman happened across the couple at a local strip club and murdered them both in a fit of rage.
• The woman also killed her mother. She had always planned to kill her sister. The man at the funeral played no significant role in the whole situation.
• The woman and the sister were conjoined twins and she committed suicide.
• She had no sister, but pretended that she was her sister in order to track the man down without looking desperate.
• The man’s name was “Herb Sistern”. The woman found him and killed him. There was a typo in the original story.
• Her mother was her sister because (like in “Chinatown”) the mother had an incestuous relationship with the grandfather. The mother/sister was actually in a state of narcolepsy when she was buried, and she escaped, threatening to void the large inheritance the woman was about to get. So she killed her “sister”.
• The woman and her sister were driving to the mall, when she caught a patch of ice and drove the car into a highway barrier. The sister was killed. No one said she murdered her sister.