Friends, Family Ride for Murdered Teen Girl

Julianne Siller, 17, died back on May 25 after police say she was stabbed by her boyfriend, 16-year-old Tristan Stahley, along a hiking trail in Skippack Township's Palmer Park, Montgomery County.

Friends and family gathered in Trappe, Pa. today to celebrate the life of a teenage girl who died after police say her boyfriend stabbed her along a suburban Philadelphia hiking trail.

Julianne Siller, 17, died back on May 25 after police say she was stabbed by her boyfriend, 16-year-old Tristan Stahley, along a hiking trail in Skippack Township's Palmer Park, Montgomery County.

Investigators say the couple, who had been dating for 9 months, was walking along the trail when they got into an argument over Siller "going out too much" and she allegedly smashed his cell phone.

Police say that Stahley admitted he stabbed his girlfriend several times, then dragged her body into a wooded section of the park.

After the teen arrived home, police say his mother, Heather Stahley, told them it appeared her son had been crying and had blood and dirt on his legs.

Police say Stahley confessed the murder to his mom and his parents and then notified police.

"This whole incident is just a tragic case," said Montgomery County First Assistant District Attorney Kevin Steele. "You have a young woman whose life was taken from her and a 16-year-old who faces potential life in prison for his actions."

Stahley is charged with first degree murder, third degree murder and possession of a weapon.

A memorial event for Siller was held today at the Trappe Tavern. Attendees met there at noon and then a motorcycle procession began at 1 p.m. The procession went down the main street of Skippack Village and included hundreds of motorcycles, fire trucks, tractors and a police escort.

All donations made during the event will go towards a bench and patio area and memorial along the Skippack/Perkiomen Trail.

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