Rosa has been charged with first-degree murder in connection with the death of his mother. His case has been placed in the adult felony court system.
The boy?s attorney said it?s impossible to make any meaningful conclusions from a few seconds of footage.
?I think those clips, along with everything else that has been released, shows that the defense is entitled to and needs the entirety of all evidence, not handpicked bits and pieces,? defense lawyer Dayliset Rielo said in a statement to NBC News on Thursday.
Hialeah police have said the stabbing happened around 11:30 p.m. and that officers responded after they got a call from the teen saying he?d murdered his mother, NBC Miami previously reported. Officers found Garcia dead in her bedroom, stabbed over 40 times, next to a crib where the baby was found unharmed.
Rosa is heard on audio of the 911 call, released last year and obtained by NBC News, telling police he took photos of his mother?s body and sent them to a friend on social media.