The holy martyr Justus suffered with St Justin the Philosopher and others in the year 166. They were brought to Rome and thrown into prison. The saints bravely confessed their faith in Christ before the court of the prefect Rusticus. Rusticus asked St Justin whether he really thought that after undergoing tortures he would go to heaven and receive a reward from God. St Justin answered, "Not only do I think this, but I know and am fully assured of it."
The prefect proposed to all the Christian prisoners that they offer sacrifice to the pagan gods. When they refused he issued a sentence of death, and the saints were beheaded.