Amazon Echo may have been a witness to a suspected murder

Police in Florida believe recordings from a murder suspect's Amazon Echo may contain crucial information as they investigate an alleged argument at the man's home that ended in his girlfriend's death. Adam Reechard Crespo, 43, is charged with murder in connection to the July death of Silvia Galva, who died after suffering a stab wound to the chest. The Broward County Sheriff's Office believes Crespo's Echo - a smart speaker that connects to the Amazon voice-activated personal assistant Alexa - may have been a witness to the crime and obtained search warrants for all the device's recordings. Hallandale Beach Police Department spokesman Sgt Pedro Abut told the Sun-Sentinel that the department has received the recordings and is "in the process of analysing the information that was sent to us". The police department did not immediately return NBC News' request for comment on Saturday.