Red Entity
From Tardis Wiki, the free Doctor Who reference
The Red Entity was a parasite of the mind that would effect people on the Needle causing them to have violent impulses and killing whoever is near them. It was unintentionally brought to the Needle by Celia Fortunaté. Due to her being a time traveller she was able to interface with the Needles computer system, Whitenoise, and expose it to the Red Entity. (AUDIO: Red)