Round Up the Usual Suspects: This Sudoku is Anything but Criminal!

Today's Video:

Another great puzzle from Will Power. What do you think the reference is in this Killer Cage puzzle?

Link to Play:

Round Up the Usual Suspects by Will Power https://tinyurl.com/SudokuSleuthRndUpUsualSuspects

Rules:

Normal Sudoku rules apply.

KILLER CAGES- Numbers in cages sum to the number in the top left corner of the cage.