Two individuals rented cars from Turo, a peer-to-peer car-sharing platform, and used them to perform acts of violence earlier this week.

First, a military veteran driving a Ford F-150 Lightning drove into a crowd of people, killing at least 15. Then, an active duty Green Beret rented a Tesla Cybertruck, parked it in front of the the Trump International Hotel in Las Vegas, and allegedly blew it up. The driver died by suicide. 

On Friday, Turo’s chief executive, Andre Haddad, said in a statement that he is “outraged” thinking about “how egregiously the two individuals who perpetrated these heinous crimes abused our platform.”

Haddad noted that Turo is consulting with national security and counterterrorism experts “to learn more about how we can get even better and play our part in helping prevent anything like this from happening ever again.”

TechCrunch has asked for more information about Turo’s background checks for renters and how specifically it is working with law enforcement and counterterrorism experts to prevent such cases from happening in the future.