After nearly three hours of closing arguments from both prosecutors and defense attorneys, a Calaveras County judge adjourned just after 4 p.m., anticipating a verdict Tuesday in the Isiah Fowler case.
Fowler, now 15, is accused of stabbing his 8-year-old sister Leila in their Valley Springs home in 2013, their parents were at a baseball game five minutes away.
Fowler has been charged with second-degree murder as a juvenile since he was only 12 years old when Leila was murdered.
Since Fowler made the initial 911 call, he has maintained a similar story, that an intruder came in and killed his sister.
However, Calaveras County prosecutors argued Monday that there was no evidence of an intruder in the house and that the alleged murder weapon was cleaned, yet small traces of Leila's blood were found ingrained within the handle.
Isiah told the 911 dispatcher that the alleged intruder was a black man, but then changed his description to a Hispanic man.
The tape also revealed he doesn't tell the dispatcher his sister is dead until 1 minute and 30 seconds in to his call to 911.
Isiah's defense attorneys say the DNA evidence found inside of Leila's underwear from an unknown male cannot be ignored.
"If we knew who this was, we wouldn't even be here," defense attorney Steve Plesser said Monday.
Plesser also argued Isiah had no motive to kill his sister, adding that lacking evidence of an intruder does not mean Isiah is guilty.
Isiah has been in custody since he was 12. If he is found guilty Tuesday, he could be behind bars until he is 23.
A verdict is expected is Tuesday at 2:30 p.m. after the prosecution's rebuttal.