FBI investigation thwarts "mass casualty attack" from man accused of ISIS allegiance

CRANBERRY TOWNSHIP, Pa. - Federal authorities have arrested 21-year-old Jonathan Kramer for allegedly planning an ISIS-inspired mass casualty attack in Pennsylvania, according to federal law enforcement officials and court records released in Pittsburgh.

Kramer, a resident of Valencia, Pennsylvania, was taken into custody outside a Cranberry Township hotel following a covert FBI investigation that law enforcement leaders said thwarted an imminent threat of violence.

Incident Overview

According to federal law enforcement statements and court documents, Kramer allegedly demonstrated a sustained commitment to the Islamic State of Syria and recorded a formal pledge of allegiance to the foreign terrorist organization. Following that pledge, investigators reported that Kramer made efforts to distribute extremist propaganda and shared instructions regarding methods to kill individuals in support of the group.

Federal officials indicated that Kramer's activities escalated as he took concrete operational steps toward carrying out a violent attack. Although law enforcement intervened before any violence occurred, officials noted that Kramer had gathered weapons, ammunition, and knives while communicating about attack methods.

Timeline of Events

1. Morning of Sept. 12: Federal agents observed Kramer leaving his home in Valencia carrying a backpack, after which he traveled via Uber to a Walmart in Gibsonia.
2. Gibsonia Encounter: In the Walmart parking lot, agents observed Kramer meet with another individual and retrieve a long black bag from the trunk of a vehicle.
3. Hotel Check-in: Kramer took an Uber to a hotel in Cranberry Township, where he paid $450 in cash for a one-week stay.
4. Retail Visit: Kramer visited a Dunham's Sports location, where federal agents observed him standing at the firearms counter.
5. Arrest: Upon Kramer's return to the hotel, FBI agents intervened and took him into custody.

Suspect Information

The suspect has been identified as Jonathan Kramer, age 21, residing in Valencia, Pennsylvania. Kramer is a 2023 graduate of Mars Area High School. According to federal authorities, Kramer engaged in online communications on encrypted messaging platforms expressing support for ISIS prior to his arrest.

Police Response

Special agents and personnel from the FBI Pittsburgh Field Office executed the targeted operation to apprehend Kramer outside the Cranberry Township hotel. Federal officials confirmed that the apprehension was conducted without reported injuries after surveillance teams tracked Kramer's movements throughout the morning.

Investigation

The investigation was led by the FBI alongside federal prosecutors from the U.S. Attorney's Office for the Western District of Pennsylvania. Investigators monitored Kramer's digital activity across encrypted channels where he allegedly discussed attack tactics involving firearms, vehicle assaults, chemical poisons, and drone explosives. Public tips assisted law enforcement in intervening.

Evidence Collected

During searches conducted at the Cranberry Township hotel room and Kramer's residence, federal agents seized items including:

• One semi-automatic rifle along with a rifle scope.
• Loaded rifle magazines and approximately 190 rounds of ammunition.
• Thirty individual knives.
• A handwritten note stating instructions not to look for him.
• Social media and encrypted platform communications.

Arrest Details

Kramer was arrested Saturday by federal agents as he returned to his hotel in Cranberry Township. He was taken into custody without further incident and transferred into federal custody pending initial court appearances in Pittsburgh.

Charges Filed

Federal prosecutors charged Kramer with one statutory count under federal firearms law:

• Receipt or Transfer of a Firearm or Ammunition for Use in a Felony or Federal Crime of Terrorism: Under federal law, this offense involves receiving or transferring firearms or ammunition with knowledge or reasonable cause to believe they will be used in a felony or terrorism crime. Convictions carry substantial federal prison sentences, fines, and post-release supervision.

Court Information

Kramer appeared in federal court in Pittsburgh on Wednesday before a magistrate judge. Wearing a red jumpsuit and shackled at his hands and feet, Kramer waived his preliminary examination hearing. Prosecuting officials include U.S. Attorney Troy Rivetti. Future hearing dates have not yet been announced.

Statements from Authorities

Richard Evanchec, Special Agent in Charge of the FBI Pittsburgh Field Office, stated: "Let me be clear about this threat: Jonathan Kramer demonstrated a sustained devotion to the Islamic State of Syria. He recorded a pledge of allegiance to the same. Following that pledge, he made efforts to spread their propaganda and shared ways to kill all in the name of a foreign terrorist organization." Evanchec described the operation as stopping an "imminent threat of violence inspired by ISIS."

U.S. Attorney Troy Rivetti stated: "We want to thank the individual who first reported this defendant's dangerous and troubling behavior, as well as the other individuals who agreed to speak to law enforcement this weekend."

U.S. Representative Mike Kelly (R-PA) added: "This disgusting, hate-filled extremism has no place in our nation."

Public Safety Information

Federal law enforcement agencies remind the public that reporting suspicious behavior is critical to preventing violence. Members of the public who notice threats or radicalization can contact the FBI by calling 1-800-CALL-FBI (1-800-225-5324) or dial 911 for emergencies.

What Happens Next

Following the waiver of the preliminary examination hearing, federal procedures mandate that prosecutors present the case to a federal grand jury for formal indictment. If indicted, Kramer will be scheduled for an arraignment to enter a plea. Kramer remains in federal custody pending further court proceedings.