Fort Hood shooter Nidal Hasan has declared he is going on a hunger strike, according to a letter written from his death row cell at the United States Disciplinary Barracks at Fort Leavenworth, Kansas.

In the letter, dated March 27, Hasan said he is going on a hunger strike and reduce to 99 pounds to protest "America's hatred for (Shariah) Laws."

"I will reduce and then maintain a total body weight of 99 pounds," Hasan writes. "I hope this will also serve as a reminder of how weak the Muslim Ummah [community] is and as a reminder to the believers of the importance of following God's Laws despite the disbelievers hatred for it. And most of mankind are disbelievers!"

Nidal Hasan and the Fort Hood Massacre

November 5, 2009, Army Major and psychiatrist Nidal Hasan opened fire at Fort Hood near Kileen Texas. The shooting happened in and around the Soldier Readiness Processing Center. 32 people were injured by gunshot, ricochet shrapnel or broken glass while escaping through windows. 12 soldiers and1 civilian were killed. In 2013, Hasan was court martialed and sentenced to death. He is imprisoned at Fort Leavenworth, Kansas.

On Nov. 5, 2009, Hasan, then a U.S. Army psychiatrist, opened fire on unarmed soldiers at Fort Hood, Texas, killing 13 and injuring 31 others. An Army major at the time of the shooting, Hasan was due to deploy to Afghanistan.

He has continued to proclaim himself as a soldier of Allah, according to Fox News.

In August 2014, Hasan wrote a letter to Abu Bakr al-Baghdadi, the leader of ISIS, asking to become a citizen of the Islamic State, according to CNN.

On March 27, Fort Hood’s commanding general, Lt. Gen. Sean B. MacFarland, issued a statement saying that Hasan will not be dismissed by the Army until he is executed. Hasan is one of six inmates on death row at Fort Leavenworth.