The Mandalay Bay Hotel room in Las Vegas where Stephen Paddock opened fire had multiple windows  shattered early Monday morning.

Police stormed the room late Sunday night to find Paddock, 64, already dead of an apparent self-inflicted gunshot wound.

Mandalay Bay tweeted their condolences to the victims following the attack. The hotel, owned by MGM Resorts, had a 10-hour lockdown of the Mandalay Bay and nearby MGM hotel on the Sunset Strip until Monday morning.

Paddock, who lived in nearby Mesquite, Nevada, shot and killed over 50 people and injured 400 after opening fire on attendees of the Route 91 Harvest Music Festival in Las Vegas.

He reportedly checked into the Mandalay Bay hotel on Thursday, Sept. 28.

A woman of interest, perhaps Paddock’s girlfriend, had also been “located” by law enforcement officials, though it’s unknown if she played a role in the deadliest mass shooting in U.S. history.