Updated

A community that has mourned two slain Las Vegas police officers gathered again to remember a man who died while trying to stop the shooting rampage.

Nearly 400 people attended a memorial service Sunday in Las Vegas for 31-year-old Joseph Wilcox.

He was fatally shot at a Wal-Mart after Jerad and Amanda Miller killed Officers Igor Soldo and Alyn Beck at a nearby pizza shop minutes before, declaring the start of a revolution.

Wilcox saw the shooters at the Wal-Mart on June 8 and pulled out his legally concealed gun to stop them, but was shot by Amanda Miller.

Sheriff Doug Gillespie eulogized Wilcox as a "hero," saying his actions allowed other shoppers to safely leave the store.

The Millers died after a shootout with police.