Question with a fascinating answer
A friend of mine sent this to me, thought it was pretty interesting. Post your best guess and I'll reveal the answer later:
A woman, while at the funeral of her own mother, met a guy whom she did not know. She thought this guy was amazing. She believed him to be her dream, she fell in love with him right there but did not ask for his number, and no matter how hard she tried, she could not find him. A few days later, she killed her sister.
What is her motive in kiling her sister?