Massachusetts Man Charged with Murder After Neighbor Found Dead

Carol Flaz-Burgos was last seen making the sign of the cross before entering Cristian Montero's apartment, where she was allegedly killed.

Carol Flaz-Burgos, 37, was reported missing on August 31 and found dead in Haverhill on September 3.
Surveillance footage shows Flaz-Burgos entering neighbor Cristian Montero's apartment but never leaving.
Montero, 35, was initially charged with witness intimidation and is now facing a murder charge.
Cellphone data indicated Flaz-Burgos' phone moved away from the apartment at the same time Montero was seen leaving with a cart.
Montero allegedly misled investigators about his whereabouts during the time of Flaz-Burgos' disappearance.