Deadly Shootings at Las Vegas Courthouse

Jan. 4: Law enforcement surround the Lloyd D. George federal courthouse building in downtown Las Vegas following an officer involved shooting in Las Vegas. (AP)

Jan. 4: Law enforcement surround the Lloyd D. George federal courthouse building in downtown Las Vegas following a shooting Monday morning. A hospital official says a court officer has died and a second officer is in serious condition. (AP)

Jan. 4: Law enforcement surround the Lloyd D. George federal courthouse building in downtown Las Vegas following a shooting Monday morning. A hospital official says a court officer has died and a second officer is in serious condition. (AP)

Jan. 4: The Lloyd D. George federal courthouse building is pictured in downtown Las Vegas following a shooting in the courthouse lobby that left a court officer dead and a second officer in serious condition. (AP)

Jan. 4: Law enforcement officers gather south of the Lloyd D. George federal courthouse building in downtown Las Vegas following a shooting in the lobby that left a court officer dead and a second officer in serious condition. (AP)

Jan. 4: Law enforcement officers gather south of the Lloyd D. George federal courthouse building in downtown Las Vegas following a shooting in the lobby that left a court officer dead and a second officer in serious condition. (AP)

Jan. 4: Law enforcement officers gather beside an FBI vehicle outside the Lloyd D. George federal courthouse building in downtown Las Vegas following a shooting in the building's lobby that left a court officer dead and a second officer in serious condition. (AP)

Jan. 4: Law enforcement officers surround the Lloyd D. George federal courthouse building in downtown Las Vegas following a shooting in the lobby that left a court officer dead and a second officer in serious condition. (AP)