"It appears that the suspect had broken into this residence, a violent encounter ensued where we believe that the teenager was trying to protect the home and protect their younger sibling," the sheriff said.
His 5-year-old sister was unharmed. Supporters set up a GoFundMe page to help cover funeral expenses and try to move Khyler's mother and sister into a new home. One of the organisers wrote on the page that the 5-year-old, who has not been publicly identified, had witnessed the altercation. The family could not be reached for comment on Tuesday, and they have asked for privacy, police said.
Khyler's relatives, classmates and friends gathered at an emotional vigil on Sunday night, local news outlets reported.
"When he protected his sister, he became a man that day," a former classmate told NBC2 News. "Not a lot of people would do that."
Cole was charged with theft, burglary and violating parole. Additional charges were pending, in consultation with the local state attorney.
Cole was a familiar figure to police officers, had a history of drug use and was on probation, the sheriff said. Booking records show he has been arrested more than 20 times since 2011 and has served time on drug and theft charges.
Written by: Karen Zraick
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