Complex sentence: As Butterfield talks to D'Amour the bald man starts literally tearing through the door to get into the room however he no more gets in when D'Amour tosses him out the window sending slamming into the concrete below.
Split into simpler sentences: As Butterfield talks to D'Amour the bald man starts literally tearing through the door to get into the room. As soon as the bald man enters the room D'Amour tosses him out the window sending him slamming into the concrete below.