Washington DC, Nov. 12 -- The suspect in the shooting at a gym in Washington, DC's Logan Circle neighbourhood, which left one person dead and four others injured, has been identified as Dr Matt Lambert, according to two federal law enforcement officials, as reported by NBC News.

The suspect, who is also dead, apparently died from a self-inflicted gunshot wound following an hour-long barricade situation inside an apartment, CNN reported, citing the police.

The Metropolitan Police Department (MPD) said officers had been communicating with the suspect before they heard a gunshot inside the apartment and subsequently forced entry, where they found him suffering from a gunshot wound.

Interim MPD Chief Jeff Carroll said the suspect had also ...