What is going on . Reporter a very active scene in dorchester. Were at 20 west cottage street. I want to take you live to sky 7 over the scene. The street has been closed off. A person has been shot. That person has been taken to the hospital with lifethreatening injuries. At this time, we do not know what the circumstances were that led to this shooting or the status of the person that shot this person. Looking for the person at this time or whether they have him in custody. Were working all these details, but the story at this hour is that a person here in dorchester has lifethreatening injuries after being shot here at 20 west cottage street tonight. The area has been blocked off. As investigators and detectives swarm the scene investigating. Well have much more thought the next few hours of 7 news, live in dorchester, ryan police making an arrest in an attack on a teenage girl in bourne. Police say the girl was walking to her busstop when the attack happened. Jadiann adam has more.