SACRAMENTO (CBS13) — A third arrest has now been made in connection to Sunday’s mass shooting that left 6 dead, but Sacramento police say this person is not facing charges directly related to the shootings.

Sacramento police say Daviyonne Dawson has been arrested and is facing charges of being a prohibited person in possession of a firearm.

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Detectives say they were following up on information about a man reportedly seen carrying a gun in the immediate aftermath of the downtown Sacramento mass shooting. A handgun has since been recovered, but detectives do not believe the weapon was used in Sunday’s shooting.

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Dawson, 31, joins Dandrae Martin, 26, and Smiley Martin, 27, as the three people now facing charges after the shooting. Dandrae and Smiley, who are brothers, appear to have long rap sheets – with Smiley recently having been paroled.

Investigators have found more than 100 expended shell casings at the shooting scene along with a stolen handgun that had been converted to a weapon capable of automatic fire.

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