The death of an 18-year-old woman at a home in Mattapan earlier this month has been ruled a homicide, Boston police said Thursday. Stream NBC10 Boston news for free, 24/7, wherever you are. WATCH HERE WATCH HEREPolice didn't say if anyone was in custody in connection with the shooting or if a suspect has been identified. NBC10 Boston NBC10 BostonLast week, a vigil was held for Marte, where participants released balloons into the sky, Telemundo Nueva Inglaterra reported. If you or someone you know is experiencing domestic violence, contact the National Domestic Violence Hotline by calling 1-800-799-SAFE (7233), visiting www.thehotline.org or texting LOVEIS to 22522.