 <translate> To answer this question, we should know that: Michael Grant Ethan is Ricky's 14-year-old foster brother who ran away from their house a few years after stealing a knife from Margaret and Shaker.
So, the final answer is Michael Grant Ethan. <yor> Ká tó lè dáhùn ìbéèrè yìí, ó yẹ ká mọ̀ pé: Michael Grant Ethan ni ọmọ ọdún mẹ́rìnlá tí Ricky bí, tó sá kúrò nílé wọn ní ọdún mélòó kan lẹ́yìn tó jí ọ̀bẹ lọ́wọ́ Margaret àti Shaker. Nítorí náà, ìdáhùn tó ṣe é gbà ni pé Michael Grant Ethan ni. 