Perpetrator, in police jargon crossword clue

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I must admit that this clue is not so easy. It took us some time to find the right answer to Perpetrator, in police jargon. You already know the answers has 4 letters. If you still cannot find it, here it comes.

Clue: Perpetrator, in police jargon
Answer: DOER
Now you know the answer to Perpetrator, in police jargon. It’s time to go back to find the answers to others clues on Wall Street Journal June 19, 2018

Wrong answer?
Sometimes one clue can have more than one possible answer. For example, the clue “Wall Street order” can have 3 answers: SELL, PUT, BUY, PUTOPTION found on these crosswords: WSJ (Sept. 26, 2016), New York Times (Jun. 14, 2015), LA Times (Dec. 30, 2013) and Washington Post (Jan. 15, 2013)