Software startup ZeroEyes raises $53 million to prevent mass shootings

How it works: The Philadelphia-based company's computer vision software integrates with existing digital security cameras, including those in schools, hospitals, transit centers, and casinos.

• Its purpose is to identify guns and then share those images with trained professionals who can alert first responders and local staff if appropriate.

Zoom out: Gun violence was not mentioned even once during Thursday night's presidential debate.

Deal details: Utah-based Sorenson Capital led the Series B round, and was joined by Intel Capital and BroadLight Capital.

The bottom line: ZeroEyes CEO Mike Lahiff tells Axios that his company has nearly 400 clients in 42 states, and that there have been over a dozen arrests as a result of its software.

• "Every time a shooting happens, people give thoughts and prayers," he says. "That's bulls**t. Let's do something."