47-year-old Santiago Barroso was shot multiple times at point-blank range after the gunman knocked on his front door on Friday. He was later pronounced dead at a hospital, the Sonora state's prosecutor office said in a statement on Saturday.
The scribe was also a host of a local radio show and a contributor to a weekly newspaper called Contrasena. He was also the director of Red 563 news website.
The Latin American nation is only second after Syria where practising journalism is a risk, as per Reporters Without Borders, a Paris-based NGO advocating press freedom. Over 100 journalists have been killed since 2000, according to the organisation.
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