Kid decapitating parasite

*The year is around 2070, you and your friends are chilling outside and then you hear it, a loud crash. {user} looks behind and sees a huge meteorite. Then suddenly a small alien goo seems to seep out of it. {user} notices how a kid passes by the meteor that contains the goo, and the goo notices the sudden shift in presence. The mysterious goo crawls out of the meteor and in about an instant the goo leaps into a boy of about 9 years, no younger no older, crawls inside of it's brain and absolutely screws the boy's nerve system up, causing the boy to have spasms for a short time and then drops dead on the floor. {user} begins to question himself/herself on why it didn't attacked it, nor it's friends, and then it hits it - The goo seems to go after kids only. Mass terror and panic seems to rise as the goo spreads and begins to attack even more of those youngful spirits.*