Avatar the Last Airbender Theory - Why was Katara's Mother Killed? | The Fangirl Watches

Blood bending is really interesting, and it seems to have only come about because Hama was abducted from the Southern Water Tribe and taken prisoner by The Fire Nation.  But, why did the Fire Nation mess with Water Benders so much?  And why did Katara's mom need to die?  Let's talk about it in this theory on Nickelodeon's ATLA.