Key Timeframe Summary
The Las Vegas shooting on October 1, 2017, involved an extended period of gunfire, with the most intense active shooting phase lasting approximately 10 to 12 minutes from the initial shots from the Mandalay Bay suite window. However, the complete event unfolded over several hours, including the gunman’s actions, first responder arrival, breach and entry into the hotel room, and subsequent aftermath. Total incident duration from first shots to room clearance and scene securing extended across roughly 1 to 2 hours, with the active firing period concentrated in a much shorter window.
| Phase | Approximate Time or Duration | Source Type |
|---|---|---|
| Initial shots from hotel suite | ~10–12 minutes of active firing | Law enforcement timeline |
| 911 calls and first officer arrival | Within 1–2 minutes of shots starting | Emergency call logs |
| Hotel security floor breach | 40–45 minutes after shooting began | Official incident report |
| Room entry and gunman neutralized | Shortly after breach (within minutes) | Investigative summary |
Initial Detection and Immediate Response
At approximately 10:05p.m. PDT on October 1, 2017, multiple witnesses reported hearing rapid gunfire originating from the 32nd floor of the Mandalay Bay Resort and Casino. Concceived as a possible explosion initially by some attendees at the nearby country music festival, the first 911 calls were placed within a minute or two of the onset of firing. Law enforcement dispatch records indicate officers were notified and dispatched almost immediately, with first responders arriving on the scene of the Las Vegas shooting within a handful of minutes.
Timeline of Early Moments
- 10:05p.m. — First audible gunshots reported by concertgoers and hotel guests.
- 10:05–10:06p.m. — Numerous 911 calls placed; dispatch logs created.
- 10:06–10:07p.m. — Off-duty officers and on-duty responders begin converging on the hotel.
Active Shooting Period
The period of continuous gunfire from the shooter’s location in room 13b of the Mandalay Bay lasted roughly 10 to 12 minutes, according to law enforcement timeline reconstructions. During this window, the gunman fired hundreds of rounds from the suite window down onto the festival crowd. This active shooting phase represents the most intense and life-threatening portion of the incident, with the majority of casualties occurring within this timeframe. The sustained rate of fire and volume of ammunition expended were noted as unprecedented in modern U.S. mass shooting records.
Duration Details
- Start: Approximately 10:05p.m., audible bursts reported.
- Peak firing: Consistent gunfire through roughly 10:05–10:17p.m.
- Cessation: Gunfire stopped around 10:17p.m. from the suite window.
Hotel Breach and Room Clearance
After the firing stopped, police coordinated a tactical approach to access the shooter’s room. Security staff initially moved through the hotel internally, while law enforcement assembled outside. The breach of the 32nd floor and subsequent entry into room 13b occurred around 40 to 45 minutes after the shooting commenced. Once inside, officers encountered the gunman, who was deceased, having died from a self-inflicted gunshot wound. The room was secured and the scene was processed shortly thereafter.
Key Actions and Timing
- Approximately 10:05p.m. — Shooting begins.
- Approximately 10:45p.m. — Hotel breach initiated.
- Approximately 10:50p.m. — Room entered; shooter located and confirmed deceased.
Overall Incident Duration
From the first audible shots to the clearance of the hotel room, the incident spanned roughly 1 to 2 hours. The concentrated period of gunfire was relatively brief, yet the complete sequence of detection, response, breach, and resolution extended the operational timeline significantly. This distinction between active firing duration and total incident duration is important for understanding law enforcement and emergency response efforts.
In summary, the shooting itself — the period during which gunfire was actively directed at the festival crowd — lasted approximately 10 to 12 minutes. The broader event, from first reports to room clearance, unfolded over approximately one to two hours, involving rapid emergency response, tactical police work, and a methodical hotel-by-hotel search on the 32nd floor of the Mandalay Bay.
Aftermath and Follow-Up
In the minutes and hours following the shooting, emergency medical services triaged and transported dozens of injured individuals to area hospitals. Law enforcement conducted a multi-agency investigation, reviewing thousands of hours of camera footage, radio communications, and officer accounts. The official timeline synthesized by investigative bodies highlights the rapid onset of the attack and the decisive actions taken by first responders once the location of the gunfire was confirmed.
Conclusion
The question of how long the Las Vegas shooting lasted is best answered by separating the active firing period from the full incident timeline. The gunfire itself lasted roughly 10–12 minutes, while the entire event from first shots to resolution extended over approximately 1 to 2 hours. Understanding these distinctions clarifies the scale of the attack and the response effort mounted by police and emergency personnel.