Why murdered Maltese journalist Daphne Caruana Galizia is back in the news

People outside a church in Valletta, Malta, after a mass in memory of Caruana Galizia.

(CNN)Daphne Caruana Galizia, 53, was a leading anti-corruption journalist from Malta, killed in a car bombing near her home in 2017. Her family say she was "assassinated" because of her work uncovering alleged corruption in the Maltese government.

Caruana Galizia first earned her reputation as an activist in 1982 when she landed in jail at the age of 18, for protesting against what she felt was a corrupt government. She spent her early career writing for Malta's largest publications, including the Sunday Times of Malta and the Malta Independent, for whom she wrote regular columns until her untimely death.
Even after her death, her personal blog Running Commentary still regularly attracts more views than the combined circulation of all of Malta's newspapers, according to the Daphne Caruana Galizia Foundation, established by Caruana Galizia's sons and husband.
    In 2016, Caruana Galizia broke a story about a string of secret Panama-based companies tied to Maltese politicians on her blog, including allegations of corruption against Maltese Prime Minister Joseph Muscat's wife. The couple have denied the allegations.
      Her work laid the groundwork for the publication first of the Paradise Papers and later the Panama Papers by the International Consortium of Investigative Journalists.
      Caruana Galizia's work made her many powerful enemies while she was alive, and she was sued for libel on multiple occasions. The many threats she received have contributed to the difficulty in determining just who was responsible for her death.

      What happened to her?

        Caruana Galizia died on October 16, 2017, when her rented Peugeot 108 was detonated by a remote control device on a country lane near her home in Bidnija, Malta. Her son Matthew Caruana Galizia, told CNN that she was driving a rental car at the time, out of fear that someone might target her car in an attempt to kill her.
        What was left of Caruana Galizia's body was found by her son Matthew, who was living at home at the time. When he heard the blast, he ran barefoot to the nearby field where what was left of her car was scattered. He described the grisly scene in a Facebook post after her death. "I looked down and there were my mother's body parts all around me," he wrote. He has vowed to continue his mother's work.
        Caruana Galizia was killed by a car bomb on October 16, 2017.
        Caruana Galizia had faced numerous death threats, and had been under police protection for years. But in 2010, her police protection was cut in half, which she described on her blog as the government's retaliation for her criticism. Her police protection was removed entirely in 2013 when the Labour party -- a frequent target of her investigations -- returned to power.
        Her family have petitioned the government of Prime Minister Muscat to open a public inquiry into whether the removal of police protection ultimately led to her death. Such an investigation has not yet been launched. The government attributed wider cuts in police protection to budget decreases, but it has not explained why it removed Caruana Galizia's protection. CNN has contacted the government on whether it will open an inquiry into the circumstances.

        Has anyone faced justice for her murder?

        In December 2017, 10 people were arrested in connection with setting the bomb that killed Caruana Galizia. The detentions at the time were largely seen as an answer to growing pressure from the European Union on Muscat's government to show good faith in investigating her murder.
        Seven of the detained people were eventually let go, but brothers Alfred and George Degiorgio along with Vincent Muscat, no relation to the Prime Minister, have been formally charged with her murder. All three suspects have pleaded not