Where are all the puzzle pieces in Hotline Miami?

I used this video extensively to figure out each of these. Here they are:

• U - Prelude: The Metro. 1st Floor, Bottom Left end of the tracks
• T - Chapter 1: No Talk. 2nd Floor, Top left kitchen in front of sink
• A - Chapter 2: Overdose. 2nd Floor, Bottom Right bathroom (between toilet and tub)
• O - Chapter 3: Decadence. 2nd Floor, Bottom Left dining room in front of chair (furthest right, top row)
• A - Chapter 4: Tension. 2nd Floor, Bombroom (left below window)
• E - Chapter 5: Full House. 1st Floor, Bottom right kitchen (right of top chair)
• I - Chapter 6: Clean Hit. 2nd Floor, Bottom right balcony (below head of lower patio chair)
• N - Chapter 7: Neighbours. 1st Floor, Top Left Bedroom, right of computer chair.
• R - Chapter 8: Push It. Right 2nd Floor, Top right corner of top right dance floor
• S - Chapter 9: Crackdown. 2nd Floor. Top middle by elevator? BE FAST, you have to be the SWAT
• I - Chapter 10: Hot-N-Heavy. (Top right floor), bottom left pool room, below bottom pool chair

Spoilers:

• N - Chapter 11: Deadline. 2nd Floor, Bottom Left
• W - Chapter 12: Trauma. Starting Floor, bottom right bathroom next to toilet.
• S - Chapter 13: Assault. 1st Floor, Bottom Left bathroom (between toilet and "sink" (I think it may be one of those sinks you wash your bum with, but I don't think they're common in Miami? (they're not in Canada...)))
• B - Chapter 14: Vengenace. 3rd Floor, Bathroom in front of stairs (upper left urinal)
• H - Final Chapter: Showdown. 1st floor, room on the left between coach and chair.