WATCH LIVE: DA, police announcing criminal charges in ‘multi-jurisdictional investigation’Police: 14-year-old boy killed, 16-year-old arrested after Worcester shooting DA: Woman, child killed in apparent murder-suicide at Lowell apartment Bodies believed to be mother, daughter missing since 2000 found after deathbed confession6 gang members facing over 100 indictments for crimes committed across Mass. and NH, DA says