Check this out
 

The main character in the story is a girl. When she was at the funeral
of her own mother, she saw a guy who was also there but she did not know who he was. This guy happened to be her dream guy and she fell in love with him at once, even though she didn't get to speak to him...

A few days later the girl killed her own sister.
When the Police asked her why she did that she gave a shocking answer...
What is her motive in killing her sister?

Her sister was actually the guy dressed up...and she got pissed and killed her...

crabs?

hehe cmon guys I know you can do more than that :)

I'll post the answer at 1 a.m. EST. It's 23:40 EST now.

Easy.. It was her sister's boyfriend or husband.

thats what i figured, but seems to easy of a motive...

Answer:
She was hoping that the guy would appear at the funeral again. If you answered this correctly, go to the police and tell them to lock you up.

This was a test by famous American psychologists used to test if one has the same mentality as a killer.
Many arrested serial killers took part in this test and answered it
correctly. If you didn't answer correctly - good for you.