Although not considered a threat to the broader community, police on the case of the deadly stabbing in Launceston are advising not to approach Kerry Whiting (pictured above).
They are looking to speak with him and track down a Victorian registered black Nissan Murano station wagon (below).
The stabbing in the Prossers Forest Road home in Ravenswood early this morning saw a man killed and a woman critically injured, both of them aged in their 30s.
Two teenagers who were in the property were not physically hurt.
Anyone with information that would assist police to locate Kerry or the vehicle is asked to phone police immediately on 131 444 or Crime Stoppers anonymously on 1800 333 000.