Morgan Tremaine, a former employee of TMZ, took the witness stand on day 22 of Johnny Depp's defamation trial against his ex-wife, Amber Heard. Tremaine shocked the gallery during an argumentative back-and-forth exchange with Heard's attorney, Elaine Bredehoft, in which he suggested she possibly took on the actress as a client in an attempt to gain '15 minutes of fame.' More from Entertainment Tonight: https://www.youtube.com/channel/UCdtXPiqI2cLorKaPrfpKc4g Exclusives from #EntertainmentTonight :    • NEW From Entertainment Tonight