He was so angry that he kissed Adam... And almost took him by force, doing exactly the same thing as the bastards he killed in the past.
He must've lost his mind.
The pain he had to endure while escaping the raid was nothing compared to the one that pushed him to join the Enigmas and started his killing spree for the last few years.
The memory from the day he first met Adam was still vivid in his mind, he was the kindest person to ever exist after Kane, at least for him.
Unfortunately, his twin brother befriended some bastards... And they violated Adam when he wasn't around to protect him.
On that rainy night Kale butchered those assholes right after finding out, not knowing that one of them was a relative of a gang leader.
But Kane didn't want his brother harmed, so he went to meet the gang leader to claim responsibility, saying that he was the one who murdered them because they assaulted his lover.