The family of an armed man shot and killed by security guards in a suburban Las Vegas casino-resort last year is suing. The son of 53-year-old Shannon Howell filed a wrongful death lawsuit last week in Clark County District Court. Green Valley Ranch Resort in Henderson and four employees are named in the complaint. Authorities say security confronted Howell, who was carrying a handgun, on New Year’s Day 2019. Police say Howell was fatally shot after drawing his weapon. Dalton Howell says guards had no lawful authority. Red Rock Resorts, which owns Green Valley Ranch, declined to comment.