Full Notification

Bicyclist Arrested for Brandishing a Weapon and Resisting Arrest
 
A member of a bicycle group brandished a weapon while yelling at a motorist.  The suspect tried to flee from police and resisted arrest.    
 
San Mateo, CA – On October 13, 2023, at 9:53 p.m., a member of a large bicycle group approached a car trying to drive past the group and brandished a weapon in a threatening manner.  The suspect was later found and tried to flee from police.  The suspect was ultimately apprehended and arrested. 
 
San Mateo Police Department received a 911 call from about a group of bicycle riders in downtown San Mateo.  The victim stated a large group of bicyclists had surrounded her car and was hitting the vehicle.  As the group was hitting her car a member of the group approached her car yelling.  The victim said the suspect, later identified as Jeffery Seiler, lifted his shirt showing a weapon in his waistband.  The victim called the police and several officers responded to the scene. 
 
The group of bicyclists continued to ride through San Mateo as officers were arriving on scene.  The victim was able to give a detailed description of Seiler and his clothing.  Officers located Seiler riding in the group and attempted to stop him.  Seiler rode away from officers.  Officers chased him for multiple city blocks before being able to stop and detain him without further incident.  Seiler was arrested for brandishing a weapon and resisting arrest.   
 
This investigation is ongoing.  If anyone has any information about this incident, please contact the San Mateo Police Department at (650) 522-7700.     
 
We need the community’s support in reporting crimes and being a good witness.  If you witness a crime, contact police immediately.  Try to remain as calm as possible and do your best to answer questions on the phone.  Remember details such as the suspect’s appearance, clothing, any distinguishing features, and which direction they flee. Once the police arrive at the scene, cooperate fully, and provide the officers with all the information you have.  Your observations can greatly assist law enforcement in their investigation.   
 
Surveillance cameras are important and help police solve crimes throughout the community.  Most often, a suspect will flee the scene of a crime prior to police arrival.  Surveillance cameras are helpful for investigations and ensuring criminals are held accountable for their actions.  We encourage our residents to register their home surveillance cameras with us.  You can securely register your home surveillance cameras on our website at Security Camera Registration | San Mateo, CA - Official Website (cityofsanmateo.org).    
 
 
ARRESTED
Jeffrey Seiler, 36-year-old San Mateo resident.
CHARGES:
417(a)(1) PC- Brandishing a deadly weapon.  148(a)(1) PC- Obstructing or resisting a peace officer.