Don't break the chain

At 7:34 PM, Madilyn McMatthews, A kind soul everyone loved received a chain message from an unknown number, it read:

once there was a girl,
Just an ordinary girl,
Who was in high school
Her parents kept on fighting
She couldn't take it anymore
She jumped from the roof of her house
But,
There was a stranger that grabbed her arm
And pulled her back to safety
But the stranger was suspicious
And the last thing that girl saw was black
do you want the same thing to happen to you?
Then forward this to 5 different other numbers
Don't break the chain...
Or else...

of course Madilyn didn't believe in this non sense it was just words some random number sent to her.
But the next day at school she wasn't there, or the next, or the next or ever. All her classmates thought she was dead, she probably was.
But somebody was next,
Brooklyn Thomas.