Police say they've cracked two separate murder cases with the arrest of one teenager. 

According to investigators, 19-year-old Clayton Gravenhise has been linked to two deadly shootings from this past summer. 

The first happened back on July 13 when cops say 18-year-old Beverly Turner was found shot several times on Quincy Street, near Marcy Avenue. 

The second shooting happened on Aug. 29 when Gravenhise and another suspect are accused of firing several shots into a liquor store on Stone Avenue, hitting two people inside. Jahzeph Crooks, 19, was shot in the head and knee, and died about a week later. A 20-year-old woman was wounded in the ankle. 

Gravenhise is facing a number of charges in connection to both cases, including second-degree murder, attempted murder and criminal possession of a weapon.