Teen charged with murder in deadly columbia borough stabbing
handcuff

Teen charged with murder in deadly Columbia Borough stabbing

July 27, 2026
1 min read

Investigators say surveillance video and witness statements led to the arrest of a 17-year-old suspect

COLUMBIA, PA — A 17-year-old Columbia Borough teen has been charged with criminal homicide in the fatal stabbing of a 26-year-old man earlier this month after investigators said surveillance footage, witness statements and multiple tips identified him as the suspect.

Joshua D. Flores, 17, of the 600 block of Avenue G, was arrested Sunday night and charged with criminal homicide, aggravated assault and tampering with evidence in the death of Anthony Stoy-Velazquez, according to Columbia Borough Police and the Lancaster County District Attorney’s Office.

The charges stem from a stabbing that occurred during the early morning hours of July 8 in the 200 block of Linden Street.

According to investigators, an eyewitness told police Stoy-Velazquez approached Flores at approximately 12:30 a.m. and began yelling at him. The witness said the confrontation turned physical before Flores allegedly stabbed Stoy-Velazquez in the chest.

Police said surveillance footage from multiple businesses and nearby homes appears to show the two men confronting one another before Flores allegedly stabbed the victim and fled the scene.

Officers found Stoy-Velazquez lying face down in the street with a single stab wound to the chest. Despite lifesaving efforts, he was pronounced dead at the scene.

Investigators said another witness reported Flores disposed of his cellphone after the stabbing. In the days following the homicide, Flores allegedly sent text messages expressing a desire to “go on the run,” saying he was “scared” and needed to avoid being seen. Police also said a witness later told investigators Flores admitted he was the person who stabbed Stoy-Velazquez.

Lancaster County District Attorney Heather Adams praised the investigation, noting that an arrest warrant had been obtained last week but remained sealed by court order until Flores was safely taken into custody.

Following his preliminary arraignment, Judge Frank Ember denied bail. Flores remains at the Lancaster County Youth Intervention Center.

The case will be prosecuted by Assistant District Attorney Mark Fetterman.

The charges are allegations, and Flores is presumed innocent unless and until proven guilty in court.


Key Points

  • A 17-year-old Columbia Borough teen has been charged with criminal homicide in the fatal stabbing of a 26-year-old man.
  • Investigators said surveillance video, witness statements and tips led to the arrest.
  • The suspect is being held without bail at the Lancaster County Youth Intervention Center.
Chris Quigley

Chris Quigley is a Staff Writer and Community News Correspondent for Shore News Network, where she covers local government, public safety, community affairs, politics, and issues impacting residents throughout New Jersey. Her reporting focuses on delivering timely, accurate, and relevant news that helps readers stay informed about the communities in which they live and work.

As a member of the Shore News Network editorial team, Quigley works closely with public officials, community leaders, first responders, and local organizations to provide factual coverage of breaking news, municipal government, public policy, and events affecting New Jersey residents. Her work highlights both major developments and the local stories that shape communities across the state.

Quigley is committed to responsible journalism, emphasizing accuracy, source verification, and transparency in every story she reports. She strives to present information in a clear and accessible manner, helping readers better understand the issues, decisions, and events that impact their daily lives.

Through her work at Shore News Network, Chris Quigley contributes to the organization's mission of providing trusted local news coverage, accountability reporting, and community-focused journalism throughout New Jersey.

Chris Quigley is a graduate of Stockton State University and began her career at IN Jersey, the online news and media branch of the Asbury Park Press. She also worked at Monmouth Internet, the Ocean Signal Newspaper, and JTOWN Magazine during her career in both content management and operations.

Degrees: Business B.A. - Stockton University

Experience and interests: Criminal Justice, Business, Animal Care, Entertainment, Lottery News, Local News