The trial of a teenager accused of stabbing and killing another teen ended in a mistrial Tuesday as jurors were unable reach a unanimous decision.

Santos Angel Hernandez, who was 15 at the time of the crime, was accused of first-degree murder and armed robbery in the killing of 16-year old Austin Wayne Maudsley near a Marana park in 2011.

Jurors deliberated for more than two days before the mistrial was declared.

Hernandez and another defendant, Dante Solomon, were accused of stabbing Maudsley, stealing $50 from him and leaving him to die.

"The defendant helped Mr. Solomon kill Mr. Maudsley," Deputy Pima County Attorney Kellie Johnson told jurors in her closing arguments last week.

The state argued Hernandez delivered the first stab wound to Maudsley, stabbing him in the back as the three climbed a wall into a Marana field, before Solomon later stabbed him multiple times. Maudsley's body was discovered seven days later by a dog walker.

Solomon pleaded guilty to first-degree murder and was sentenced to life in prison in March 2012.

The three had met up earlier at a park where they discussed a marijuana purchase. The murder took place after they left the park to complete the deal.

A hearing is scheduled later this month to determine how the case will proceed.

Contact reporter Patrick McNamara at 573-4241 or