Russia Arrests Additional Suspect in Deadly Moscow Concert Hall Attack

Dzhumokhon Kurbonov, a Tajik national, has been detained as an accomplice in the March attack that resulted in 144 deaths.

Dzhumokhon Kurbonov accused of providing communication tools and financing to attackers.
Moscow's Basmanny District Court orders Kurbonov held until May 22 pending further investigation.
Total of twelve defendants now in custody, including four directly involved in the assault.
Islamic State group claims responsibility; however, Russia alleges Ukrainian and Western involvement without evidence.
Eyewitnesses describe a chaotic scene with concertgoers being shot and trampled as they attempted to escape.