Another journalist in Mexico murdered apparently for doing her job too well.

New York, April 30, 2012–Authorities must immediately investigate the murder of Mexican journalist Regina Martínez Pérez, determine the motive, and ensure the perpetrators are brought to justice, the Committee to Protect Journalists said today.

The body of Martínez was found in her home on Saturday evening in Xalapa, the capital of the Gulf Coast state of Veracruz, according to news reports. She had been badly beaten around the face and ribs and had been strangled to death, news reports said. The state attorney general, Amadeo Flores Espinoza, said in a news briefing that it appeared her TV, cellphones, and computer had been stolen.

Martínez had worked for the national magazine Proceso for more than 10 years and was known for her in-depth reporting on drug cartels and the links between organized crime and government officials. In the week before her murder, she covered the arrest of an allegedly high-ranking leader of the Zetas; the arrests of nine police officers charged with working for a cartel; and the story of a local mayor who was arrested with other alleged cartel gunmen after a shootout with the Mexican Army, according to news reports.