What happened on April 21 2016?
Multiple eyewitnesses are coming forward with sworn testimonies.
Here's what they saw/know.
(thanks @ThatBrianFella)
On April 21 2016 Amber Heard was having a birthday party in Depp's penthouse — Johnny arrived late and she assaulted, punched him.
After Amber Heard brutally assaulted Johnny Depp, she threw his mobile phone and the wallet containing it off the 13th floor.
Amber Heard told it to bodyguard Starling Jenkins who arrived at the penthouse in the morning of April 22 2016 to escort Amber and friends to Coachella.
These screenshots has been presented as evidence of what Amber Heard did to Johnny Depp: she implies to have thrown his mobile/wallet off the street and trying to block Johnny's credit cards (contained in the wallet).
Amber Heard sent these texts to a security staff member.