UPDATE: Man Arrested for Alleged Brutal Beating of Disabled Man

Update 9:00PM: Universal Hub reports that Bacai has been arrested. 

Original story: MBTA Transit Police have obtained a warrant for a Malden man they said was allegedly involved in the brutal beating of a disabled man at the Downtown Crossing T stop this week.

Ivan Bacai, 23, was the fourth suspect announced by police after the arrest of three others Monday: Karen Akiba, 22, Cambridge; Bryon Lashus, 32, Watertown and Maryanne Hamilton, 29, Jamaica Plain.

All those arrested face charges of assault and battery on a disabled person and assault and battery with a dangerous weapon.

The Boston Globe’s Sarah N. Mattero reported the group allegedly attacked the 40-year-old victim early Monday morning, leaving him with multiple cuts and scrapes, severe bruising and swelling to his face and upper torso.

The victim also lost a shoe and had his shirt torn in the attack. 

Universal Hub reports another man, Germial Johnson, 28, turned himself into Transit Police in Dorchester Wednesday morning.

Police are asking those aware of Bascai’s whereabouts to call the department at 617-222-1212, by sending a text message to 873873 or using the department’s See Say mobile app.