He was a veteran of the 1912–1913 Balkan Wars, where he became lame in one foot..
Armenian exile
Topal Osman was known to have been responsible for massacres against Armenians and Greeks during the Ottoman civil war in the Pontus region where he was stationed during World War I. While in Trabzon, Osman made a name for himself in the spring of 1915 as commander of a squadron of gangs. Osman, along with Ishak Çavuş and Bayıroğlu Hüseyin were known to have partaken in the drowning and massacres of the local Armenian population. During this time, Osman had also profiteered from the confiscation of assets and property belonging to the Armenians.
After the first world war Topal Osman Pasha continued his operations in the Black Sea region, this time targeting rebellious Christian Pontic Greeks during the Turkish war of independence. He is seen as one of the key perpetrators of the Greek Genocide, particularly in the northern region of Turkey historically known as Pontus. According to Mustafa Kemal's recent biographer Robert Shenk of the US Naval Institute, Topal Osman was a "sadistic ethnic cleanser of Armenians and Greeks." Osman along with his gang of cut throats, were responsible for massacres, deportations, destruction and confiscation of property, extortion, rapes and other atrocities throughout this region including the cities, towns and villages of Samsun, Marsovan, Giresun, Tirebolu, Unye, Havza and Bulancak. He was however refused arms and cooperation by the government and inhabitants of Trabzon, where multicultural pro-Ottoman ideals were stronger due to inter-ethnic and religious family ties. Out of anger for this refusal, Topal Osman sacked some houses in a Christian neighborhood before being forced out of the city by armed Turkish port workers and officials. Together with his subsequent murder of Trabzon deputy Ali Şükrü Bey this led to long standing animosity between the nationalist government of Mustafa Kemal and the population of Trabzon.
For his work in the national movement, Osman became commander of Mustafa Kemal's special Bodyguard Regiment. Captain of militia Mustafa Kaptan was appointed the commander of the Guard Battalion of the Grand National Assembly. He choked Trabzon deputy to death on 27 March 1923, allegedly in response to Şükrü's criticism of Mustafa Kemal.
Topal Osman Affair
Mustafa Kemal ordered İsmail Hakkı Bey, who was the commander of the Presidential Guard Battalion, to take Topal Osman and his fellows into custody. This was for the Maraş crimes committed by Topal Osman. Osman was surrounded at his hideout in Seyran Bağları wards, and in the resulting exchange of fire, was wounded and captured on 1 April 1923. Later that day, under İsmail Hakkı's orders, he was executed by a shot to the head. On 2 April, at the insistence of the "Second Group", his body was dug up and hung at the gate of the parliament building for exhibition to the public. According to some sources, his decapitated corpse was hung in the Ulus Square. He now rests in Giresun.
Legacy
Toktamış Ateş of Istanbul University claims that former Prime MinisterTansu Çiller had once promised to open a university in Topal's name. A statue of him was erected in his home town of Giresun in 2007. The erection of the statue has been linked to retired General Veli Küçük, currently under arrest for serving as a member of Ergenekon. Küçük's first attempt to erect the statue was in 1981, but it was blocked by the Turkish Historical Society. Küçük tried again in 2001 but failed in his attempt after strong opposition from Mayor Mehmet Işık. It was finally erected in 2007 with the assistance of Ali Kara, chairman of the local small businessmen group of Giresun. Kara was one of the figures whose deposition was taken during the Ergenekon investigation.
