As a noun.
The perpetrator quietly stalked away under the cover of darkness.
A perpetrator is someone who commits a crime or illegal action. An example of this word used in a sentence would be, "The police brought the perpetrator down to the station, and returned the stolen purse to a very relieved Mrs. Smith."
The perpetrator was caught on camera stealing from the store.
The investigators were persistent in finding the perpetrator even though the case was labeled as "dead".
There was a robbery last week but the police have caught the perpetrator.
Perhaps the next witness will give a better description of the perpetrator.
Perpetrator, suspect, criminal, or culprit.
pepperation
Most perpetrators of atrocities are never brought to justice.
You just used the word acolytes in a sentence. Even saying, "can the word acolytes be used in a sentence", you are using that word in a sentence.
There are multiple meanings for the word "perp". Colloquially, in the United States and other countries, the term refers to a perpetrator or criminal. The term can also mean perpendicular.
An alleged perpetrator is only under suspicion until proven that they are a perpetrator. The word 'alleged' is a legal term used when they have no evidence to prove the individual they suspect is otherwise proven by the law there is evidence they are a perpetrator. Example: If someone called you a liar and gossiped enough to tarnish your reputation then you could try and sue them, but, if they say that you are an alleged liar there is no clear cut evidence you are.
The word "incidentally" can be used at the end of a sentence. You can make the sentence "This was done incidentally.".