 <translate> Give some stream of consciousness and then the answer. Jimmy and his friends get Dave drunk at a local bar. When Dave leaves the bar, the men follow him out. Jimmy tells Dave that he shot "Just Ray" Harris at that same location for ratting him out and sending him to jail. Jimmy informs Dave that his wife thinks he murdered Katie and tells Dave he will let him live if he confesses. Dave repeatedly tells Jimmy that he did kill someone but it was not Katie: he beat a child molester to death after finding him having sex with a child prostitute in a car. Jimmy does not believe Dave's claim and threatens him with a knife. When Dave finally admits to killing Katie thinking he can escape with his life, Jimmy kills him and disposes of his body in the adjacent Mystic River.

Based on this passage, who killed katie in the movie mystic river? <yor> Fi ìmọ̀lára rẹ hàn, kó o sì wá dáhùn ìbéèrè náà. Jimmy àtàwọn ọ̀rẹ́ rẹ̀ mú kí Dave mutí yó nínú bárì kan ládùúgbò. Nígbà tí Dave jáde kúrò nínú pálọ̀, àwọn ọkùnrin náà tẹ̀ lé e jáde. Jimmy sọ fún Dave pé òun yìnbọn fún "Just Ray" Harris ní ibẹ̀ kan náà nítorí pé ó tú àṣírí òun, tó sì mú un lọ sí ọgbà ẹ̀wọ̀n. Jimmy sọ fún Dave pé ìyàwó rẹ̀ rò pé òun ló pa Katie, ó sì sọ fún Dave pé òun á jẹ́ kí ó wà láàyè tí ó bá jẹ́wọ́. Dave sọ fún Jimmy léraléra pé ó pa ẹnìkan ṣùgbọ́n kì í ṣe Katie: ó lu ọmọdé kan tó ń bá ọmọdé ṣèṣekúṣe pa lẹ́yìn tó rí i tó ń bá ọmọdé aṣẹ́wó lòpọ̀ nínú ọkọ̀. Jimmy kò gba ohun tí Dave sọ gbọ́, ó sì fi ọ̀bẹ halẹ̀ mọ́ ọn. Nígbà tí Dave gbà níkẹyìn pé òun pa Katie, ó rò pé òun lè sá àsálà, Jimmy pa á, ó sì kó òkú rẹ̀ sínú Odò Mystic tó wà nítòsí.  Ní ìbámu pẹ̀lú àyọkà yìí, ta ló pa Katie nínú fíìmù Mystic River? 