LONDON – Amber Heard is wrapping up her evidence in Johnny Depp’s libel case against a British tabloid over allegations of domestic violence, further accusing her ex-husband of abusing her when he was high on drugs or was drunk.Taking the witness box Thursday for a fourth straight day at the High Court in London, the actor reiterated allegations of abuse when Depp was on a “bender” that would often last days.“Johnny, when he was clean and sober, could be a wonderful person, generous, loving,” she said. “He’s a remarkable man when he’s like that and I loved him.