The Boston Police Department reports arresting a local man on carjacking charges Monday morning - after Quincy police picked him up following a failed carjacking.

Police say Roger Gray, 23, entered a Sovereign Bank branch at 1617 Blue Hill Ave. two or three times yesterday morning in "a very suspicious manner," although he never approached a teller. Around 10:15 a.m., police say, Gray approached a woman sitting in her car on Blue Hill Avenue, opened her door and shoved a gun in her face as he yelled at her to get out. Police say Gray then drove down Blue Hill Avenue toward Milton.

Not long after, Milton Police reported they'd found the stolen car, abandoned, in their town. Police say just as that report was coming in, Quincy Police notified them they'd just arrested a man fitting Gray's description for an attempted carjacking on Adams Street in Quincy.

Gray now faces Boston charges of armed carjacking, armed robbery and assault by means of a dangerous weapon (a gun).