The Villainous Temptress

Knuckles and his wife 'Amy' 'leaders of a mafia called The Red Cross'. He had the fallen Heroes 'including Sonic' as slaves.

Though Sonic 'who loved Knuckles thinking there was good in him' got himself tortured so badly that his body was disfigured 'assumed dead'.

A year later, Amy 'caught cheating on Knuckles with Silver' left Knuckles 'after hearing his child was not his' That was when Karma comes to him.

When a new mafia called 'The Violent Violet Mafia' started to come on top.

The leaders 'or so he has heard' were a couple of sisters. (One of the sisters was a familiar face that made Knuckles get a taste of his own medicine.)