Law enforcement January 17, 2024 10:01 am Former Mass. State Trooper Todd McGree on crime trends Todd McGhee speaks to NBC10 Boston, sharing insight on what he believes is behind the declining gun violence in Boston and nationwide. US & World Videos 12:05 Heart monitors of the future could be peel-and-stick like temporary tattoos 0:30 Speak now: Sebastián Agudelo 4:25 Speak now: Sue O'Connell 4:28 Speak now: Ellie Halvorson 3:40 Speak now: Colton Bradford