copycats

/K AA1 P IY0 K AE0 T S/
noun
  1. 1

    One who imitates or plagiarizes others' work.

  2. 2

    A criminal who imitates the crimes of another; specifically, a criminal who commits the same crime, especially a highly-publicized one, that has just been or recently committed by someone else.

    โ€œa copycat stranglerโ€

Source: https://en.wiktionary.org/wiki/copycat, https://en.wiktionary.org/wiki/copycats