Katie 
On the evening of Monday, February 22, at approximately 5:20 pm, a mother called 911 to report that her two younger children had been stabbed at the Oak Park Elementary School park by her older son.
Officers responded to the scene and found a 13-year-old boy with multiple stab wounds to his back, neck, face, chest, and hands, and a 9-year-old girl that had stab wounds to the head.
Both were transported to the Lehigh Valley Hospital-Cedar Crest for treatment of their wounds. The boy was transported to surgery due to the severity of his injuries.
After surgery, the boy was listed in critical but stable condition, having suffered 15 stab wounds.
The girl was treated and released.
Officers located the older sibling, 15-year-old Nathan Serrano at a residence near the park and took him into custody.
He has been arraigned on charges including attempted homicide, possession of an instrument of crime with intent, two counts of aggravated assault, two counts of recklessly endangering another person, and related charges.
He remains in custody at the Montgomery County Correctional Facility in lieu of $500,000 bail set by Magisterial District Judge Andrea Duffy.
His preliminary hearing is scheduled for March 9 at 11:00 am where he will be represented by Michael Drossner of Drossner Law Pc.
Officers indicated that they were able to not only recover the weapon used, but also obtained security footage from the school's cameras which captured the entire attack as well as Nathan fleeing the scene.
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