in the meantime rosi robles -- josi robles has been arrested. the gun he showed it was actually a pelican. he was injured in a wreck with police but we don't know how at an investigation. >> reporter: this is an open and active investigation involving local and state police which began at about investigators were called to a huge apartment complex in the city of malden. they were making a well-being check go when i got there they found the body of a woman. right now there was not much more being released as far as the cause of death. as we said police have been called into look into this and the da's office is actually taken over the investigation. at this point, the identity of the victim has not been released while authorities try and notify the family. no other information is being released tonight. neighbors to tell me that's they are stunned by this news. tonight they are very uneasy by all of this. resource also tells us that at one point there was a be on the lookout alert for a vehicle. tonight police are not commenting on it. unfortunat