Mubasher, Ghulam, and Ehsan Ahmad were sentenced to death for removing posters which, in addition to containing scriptural selections, called for the murder of Ahmadis and other crimes. A fourth accused, Khalil, was killed in custody.
In October 2017, three members of Pakistan’s minority Ahmadi religious community—Mubasher Ahmad, Ghulam Ahmed and Ehsan Ahmed—were sentenced to death for blasphemy. They, along with a fourth Ahmadi, Khalil Ahmed, stood accused of taking down “religious posters” that were displayed in public. The prosecution argued that they insulted Islam in doing so, while the defense maintained that the posters contained “anti-Ahmadi” language, including calling for the murder of members of the minority sect.
“This latest case reinforces that there is no excuse for the blasphemy provisions in Article 295 of the Pakistani Penal Code to even exist.” - Daniel Mark, Chairman of the United States Commission on International Religious Freedom
While the first three men received the death penalty, Khalil had already been murdered while in police custody long before the trial took place. The sentencing was met with international outcry.
Three Ahmadis sentenced to death for blasphemy - Al Jazeera
Immediately Suspend Executions of Mubasher Ahmad, Ghulam Ahmad and Ehsan Ahmad - Lawyers' Rights Watch Canada
USCIRF Condemns Pakistan Sentencing Three Ahmadis to Death for Blasphemy - United States Commission on International Religious Freedom

Pakistan is one of the most repressive countries in the world with regard to freedom of expression, including and especially religious freedom. Blasphemy (i.e. insults) against religion in general can result in imprisonment, while blasphemy against Islam carries the much harsher punishment of death. Both in terms of the aggressiveness with which the Islamic-conservative government prosecutes such cases, as well as the harshness of punishment, Pakistan remains one of the worst places on the planet to speak out against religion or religious fundamentalism.