Boston Blotter: Shootings in Cambridge, Somerville

-- A high-caliber shooting near Donnelly field left a pair of Cambridge houses riddled by bullets. A pedestrian, who remains at large, fired a .45 caliber pistol at a moving car, according to police. [Cambridge Chronicle]

-- A man suspected of shooting a teen in the knee in Union Square last Wednesday was collared by Somerville cops on Friday. The 21-year-old, whom police accuse of shooting the teen after a confrontation at a party, was arrested in his home following an investigation. [Somerville Journal]

-- James Jackson, a 30-year-old employee at Lilla G. Frederick Pilot Middle School in Dorchester, was caught with a loaded gun this morning and faces disciplinary action. [WBZTV]

-- The so-called war against terror might not have bagged Osama bin Laden, but it has extended the statute of limitations for fraud charges against Big Dig contractors. [Herald]

-- A Cambridge man made things easy for police last Thursday when he was allegedly nabbed in possession of a stolen car by confessing, unbidden, to a daring home burglary, according to authorities. He is suspected of a series of robberies in Cambridge and East Cambridge. [Cambridge Chronicle]

All charges alleged until proven under law.