Did Sunny Really Kill Mk's Mother?

M.K.'s story took a dark turn in the beginning of season 3 when he overdosed on opium and experienced a repressed memory from his childhood. He relived his mother's death and was horrified to discover that she was killed by Sunny, during his days as a Clipper for Baron Quinn (Marton Csokas).

Who locked Sunny's gift?

While a prisoner, Sunny discovers that one of their members is actually his sister, Kannin. She reveals that after they were attacked by the Black Lotus in the aftermath of Azra's fall, she was taken in by Magnus (Francis Magee). Magnus taught her that the Gift was an evil and destructive power.

How did Sunny lose his gift?

Sunny isn't able to use his Gift because it was locked away inside him a long time ago. Kannin is capable of turning it back on, but she knows that to do so would cause more harm than good. ... Since gaining the Gift, Pilgrim has shown signs of poor health.