arrested leilasleilas brother on the charge of homicide. ama: a shocking arrest. a 12-year-old boy accused of killing his own sister. for more than 15 days police searched for her killer. now her own brother is behind bars. john alston has been following the story and has the latest developments. at first authorities were looking for the killer riff the long bray hair. a neighbor also claimed there was a man running from the girl s home. authorities questioned section picked tokers, but sex offenders but that was thrown out as detectives zeroed in on the young are brother. stunning news from the sheriff outside of the office where only two hours earlier his deputies arrested the brother of leila fowler. at 5:10 been detectives arrested leila s 12-year-old brother on the charge of homicide. several days after the killing, leila s 12-year-old brother, now the accused killer, joins family members at a vigil. we re blurring his face because he is a minor. more than