There were a lot of Shakaho's in the Zanpakuto Rebellion Arc.
bleach episode 108
LOL BLEACH IS AT EPISODE 314 now
Episode 255
I've included a link to a Bleach Episode Guide at the related link.
it is bleach episode 54 named "day of execution"
Bleach is still ongoing.
You were close Rukia kills her squad captain in bleach episode 49. It is a very sad episode.
Episode 271
season 1 and episode 11
Episode 251
episode 228
Episode 230