why did kanan kill jukebox

Kanan killed Jukebox because she posed a serious threat to him and the people he cared about, especially after she planned to ransom Tariq and potentially kill both Tariq and Ghost in revenge for Ghost sending Kanan to prison for 10 years. The tense and complicated relationship between Kanan and Jukebox had deteriorated by this point, with Kanan suspecting Jukebox might turn on him. Specifically, Jukebox took Tariq to an abandoned house—likely Rock's old house, a place filled with bad memories for Kanan—heightening his distrust and fear of her intentions. Ultimately, Kanan killed Jukebox to protect himself and Tariq from her plans and because their conflicting motives and history had turned deadly.