{TW: Blood} How evil is John Constantine's actions toward Gabriel in Hellblazer?
All this because Gabriel refused to cure his lung cancer.
And so John Constantine with the help of the succubi Ellie devised a plan to break Gabriel.
By having Ellie shapeshift into a random woman and gain the trust of Gabriel, who eventually came to realize that his past actions of being a 'snob' was unacceptable.
Before Ellie, ripped his heart out and sent him back to heaven.
His father threw him out of heaven for unknowingly sleeping with a succubi and having his heart ripped out. So this archangel fell to earth and became a homeless person.
John decided to help Gabriel by sawing his wings off with a chainsaw.
Eventually, Gabriel probably died when The First of The Fallen crushed Gabriel's heart after the First stole the heart from John Constantine.