@xkindaxouttaxluckx replied here
Staring at her, or perhaps even, right through her it seemed, Helmut tilt his head sharply as he watched her crawl her way away from him. His boots squeaked against the floor in the trail of her blood as he stalked after her. Twisting the dagger in his hand, he grinned down at her "There's no where for you to go." Lifting the dagger up he lift his head up a bit, sticking his tongue out he ran it along the wide base of the dagger in his hand, lapping up some of the blood at the tip.
Then, dropping the blade from his face he turned his head to look in one direction as though some one were talking in that direction. Then he turned back to give his attention to Catalina. Aiming the blade once more he marched over, lifting his right leg up over hers, seeing as she wouldn't be quick enough to get away from him. Then, smashed his foot down into her her injured leg, right where he had stabbed her, twisting the toe of his combat boot deeper into the wound.
Kneeling down beside her quickly, he grabbed onto Catalina's neck with his left hand, squeezing "You think I don't know what you were planning, hm?" His nostrils flaring a bit he brought the end of the dagger to her left eye, stopping only an inch from penetrating it "Maybe...I am as crazy as you all think I am. Maybe you should have taken that into account, before you plotted to kill me. With your friends. Give me your fucking phone!"