APD Investigates the July 11, 2026, Officer-Involved Shooting at 1100 West Cesar Chavez Street

The Austin Police (APD) continues to investigate the officer-involved shooting that occurred on Saturday, July 11, 2026, with an initial 9-1-1 call coming in at 8:13 a.m., and the shooting occurring at 11:08 a.m., at 1100 West Cesar Chavez Street. 
 
APD understands the importance of building trust within our community and will continue working diligently to develop a strong and trusting relationship. As per our policy, we share information about a critical incident in a timely manner. APD is working with Austin Police Oversight (APO) and the City of Austin to release this information today. The news release includes links to the relevant audio and video from the ongoing investigation. The Travis County District Attorney's Office and APO have reviewed the audio and video materials identified for public release. The details provided today are preliminary, as we are very early in the investigation.  
 
The officers who discharged their Department-approved firearms have the following years of service with the Department: 

• Adam Collins – 14 years, 7 months
• William Johns – 14 years, 7 months

Per APD protocol, the officers have been placed on administrative leave.   
 
APD will conduct two concurrent investigations into this incident: a criminal investigation conducted by the APD Special Investigations Unit in conjunction with the Travis County District Attorney's Office and an administrative investigation conducted by the APD Internal Affairs Unit, with oversight from Austin Police Oversight.    
 
Transparency and accountability are key elements needed to serve and build relationships within the Austin community. Below is the chain of events related to this critical incident that will help you understand what took place. The details provided are preliminary, as we are very early in the investigation.  
 
On Saturday, July 11, 2026, at 8:13 a.m., Austin Police (APD) officers responded to multiple 9-1-1 calls reporting that a White male on an electric scooter was chasing and threatening runners with a handgun in the area of West 5th Street and North Lamar Boulevard. 
 
Witnesses reported that the incident began after a runner told the man to slow down while riding on the sidewalk. According to witnesses, the suspect became involved in a verbal altercation where he used slurs addressed to the running group. The suspect proceeded to strike a female victim, which escalated into a brief physical altercation. The suspect subsequently produced a handgun, pointed it at multiple people, and threatened to shoot them before fleeing the area on the scooter. 
 
Officers arrived on the scene within two minutes at 8:15 a.m. and began searching for the suspect. Throughout the morning, officers gathered witness statements, reviewed surveillance video, and developed a description of the suspect. 
 
At 10:23 a.m., APD checked the area of 1100 West Cesar Chavez Street and found a scooter they believed belong to the suspect. They continued to check the area for him. At 11:07 a.m., officers located an individual matching the suspect's description near the Ann and Roy Butler Hike-and-Bike Trail in the area of B.R. Reynolds Drive and West Cesar Chavez Street. Officers observed the individual, later identified as Emmanuel Diaz, 11/17/1996, get on the scooter and start to drive away. Officers gave him commands to stop. 
 
Diaz abandoned the scooter and fled on foot. Officers pursued him for a short distance while giving multiple commands for him to stop. During the pursuit, officers observed Diaz was armed with a handgun and ordered him to drop the weapon. Diaz refused to comply, continued fleeing, and did not drop the firearm. As officers closed the distance, Diaz fell to the ground and pointed his firearm at officers. At 11:08 a.m., Officer Collins and Officer Johns discharged their firearms, striking Diaz. 
 
Officers took Diaz into custody and began providing life-saving measures until Austin-Travis County Emergency Medical Services (ATCEMS) arrived. Despite those efforts, Diaz was pronounced deceased at the scene.  
 
No officers were injured during the incident, and there are no reported injuries to members of the public. 
 
This incident was captured on officers’ body-worn cameras. These videos do not always capture everything the officers or witnesses saw or experienced during the incident; however, the footage helps us understand what occurred.  
 
In compliance with state law that prohibits the release of certain information and to maintain the integrity of the investigation, the materials have been redacted.  
 
The materials include comprehensive footage of the officers’ actions and contain graphic content and language. Viewer discretion is advised.  
 
MATERIALS BEING RELEASED:   

• Police Radio Traffic
• 9-1-1 Call Audio #1
• 9-1-1 Call Audio #2
• Body-Worn Camera Video – Officer Collins
• Cell Phone Video #1
• Cell Phone Video #2
• Map of area

All of the released materials are available on APD’s YouTube Channel and other social media platforms. The link to the materials is below. 
 
Please click the link here: July 11, 2026 – Critical Incident – APD’s YouTube Channel

Anyone with information is encouraged to call APD’s Special Investigation Unit at (512) 974-6840 or email at APDSpecialInvestigations@austintexas.gov. You may also call Capital Area Crime Stoppers at (512) 472-8477, or you may submit a tip online at austincrimestoppers.org. You may remain anonymous.