Police made an arrest in connection to the fatal shooting outside Fenway Park on Thanksgiving.

On Tuesday, the Boston Police Fugitive Unit arrested 26-year-old Dominique Carpenter-Grady of Dorchester for unlawful ammo, carrying a gun without a license (second offense). 

As of Thursday morning, the suspect had not been charged with the murder of 29-year-old Jephthe Chery of Hyde Park, who worked as an MBTA conductor. 

Three other men in their late 20’s suffered non-life threatening gunshot wounds.

Boston police responded to a report of gunfire outside of a bar on Yawkey Way at about 2 a.m. on Thanksgiving.  Police described a chaotic scene with hundreds of people fleeing after a shooting outside the Who's on First bar.     The bars in the area were crowded after a night of high school football games at Fenway.

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"MBTA Commuter Rail and Keolis Commuter Services mourns the senseless loss of conductor Jephthe Chery," a Keolis statement to the Boston Herald. "He was beloved and respected by his friends and colleagues on the railroad. Today we think deeply of his family, friends and co-workers."

Police said that the investigation is ongoing. 

"Please send us the footage, help us with the investigation. For God’s sake, it's Thanksgiving. We shouldn't have these types of crimes. But unfortunately it did so we're going to need everyone's help,” Boston Police Superintendent in Chief William Gross told Fox.

Boston Mayor Marty Walsh and Police Commissioner William Evans spoke Thursday about the previous troubles with the bar, saying officers were inside just prior to the shooting to check for any potential issues, according to WCVB.

Carpenter-Grady will be arraigned in Roxbury District Court.