What had happened is Johnny Depp's marriage to Amber Heard imploded and they were divorced. Soon after the divorce, Amber spreaded rumours that Johnny was an abusive wife beating husband, this caused all of Johnny Depp's work to dry up.
The thing that Amazed me was that Johnny's legal team had gathered a lot of evidence before the court case and were very well prepared, they had proof that Amber never used the divorce settlement to pay the charities like she claimed, they gathered many time stamped paperatzi photos of Amber showing her face was never bruised. They got voice recordings of her saying she hit Johnny and verbally abusing him, they had transcripts from previous court cases where her statement contradicted what she was saying. They had exposed many lies that she had told.
Amber's legal team were very good in my view but they didn't have much to work with compared to Johnny's legal team and they didn't have much leeway. They did everything they could to maintain airtime for the jury but they were fighting a tsunami of evidence. There was so much evidence that Amber was the abusive spouse and not Johnny that it was almost impossible for her lawyers to defend her. They did everything they could.