D.C. mass shooter was recently in Orlando

A mass shooter who shot five people in Washington D.C. on Thursday was in Orlando just three days ago. Law enforcement officials have identified the shooter as emergency room doctor Matt Lambert.Police said he killed one person and injured four others in a shooting at his Washington condominium complex on Thursday following a dispute with building management.Law enforcement officials also said Lambert shot himself and died during the attack.Channel 9 discovered that Lambert had been in Orlando just three days prior, where he delivered a presentation at a medical conference on Tuesday.The investigating into the D.C. shooting is ongoing.Click here to download our free news, weather and smart TV apps. And click here to stream Channel 9 Eyewitness News live.