The homicide happened in May 2021 at a shop on Blackstone and Herndon. Investigators say 23-year-old Alex Solorio was killed.
The jury was also hung on whether Luis Lopez was guilty of second-degree murder.
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The Fresno County District Attorney is expected to move forward with another trial against Lopez for second-degree murder if he doesn't agree to a plea deal.
A second degree murder conviction carries a life sentence.
Manslaughter with a knife carried a maximum sentence of 12 years.
Ryan Guerra is also charged as an accessory after the fact in this case, but he was released from jail and skipped court when he was supposed to be arraigned.
There is now a warrant out for his rearrest.
Editor's Note: The video above is from a previous broadcast and will be updated.