Mohammad Daleel, known as Abu Yusuf al-Karrar, was a Syrian man who fought for a number of rebel groups during the Syrian Civil War, including the Islamic State.

On 24 July 2016, he carried out the 2016 Ansbach bombing, killing himself and wounding fifteen people. The attack, carried out in retaliation for Germany's role in the Military intervention against ISIL, was the first suicide bombing carried out in Germany.

History

According to Bild, he was a member of the Islamic State of Iraq many years ago.

Bild further says he told German officials that he was a Sunni Muslim and had come from Aleppo. He said he had studied law for half a year and worked at a soap factory owned by his father.

“A missile had damaged our house, I was heavily injured and brought to Turkey,” he claimed in his asylum application.

He he left Syria on July 16, 2013. Traffickers drove him to Bulgaria, where he filed an asylum request in September 2013.

On April 17, 2014, he said, he flew from Sofia to Vienna on Austrian Airlines, Flight OS 806, Seat 22A, with one suitcase. A "mysterious benefactor" gave him the airplane ticket at no charge.

Austrian police seized him and took his documents.

On April 20, he applied for asylum in Austria but then decided to go to Munich on July 5, 2014, where he also applied for asylum in Germany.

German officials and the local court in Ansbach rejected his first asylum request on 2 December 2014 and ordered his deportation to Bulgaria.

He then attempted to commit suicide twice and was under psychiatric care. Due to Daleel's mental health diagnosis, the deportation to Bulgaria was suspended.

On 13 July 2016, a second deportation notice to Bulgaria was sent to Daleel.

Paul Cruickshank, the Editor-in-Chief of CTC Sentinel, a publication of the Combating Terrorism Center at West Point, has suggested Daleel 'faked or exaggerated' any mental health problems in an attempt to stay in Germany.

Daleel had been treated around 6 months in an institution called "Exilio e.V." in Lindau by heilpraktikers which claims to offer holistic health treatment "for immigrants" under the leadership of Gisela von Maltitz and Axel von Maltitz. Purportedly, the institution does not include any qualified Doctor of Medicine, psychologist or psychiatrist. The institution has been criticized for using "dubious" practices such as rebirthing.

According to a biography in IS's weekly magazine al-Nabaa, he fought against the government of Bashar al-Assad since the very start of the Syrian Civil War, in a number of different rebel groups. He is said to have formed a cell specialized in grenade and molotov cocktail attacks on the regime. Around the time of the split between Jabhat al-Nusra and the Islamic State, he was wounded in or near Aleppo and was brought to Turkey for treatment.

Afterwards he was located in Europe, where he tried to rejoin the Islamic State several times, but was unsuccessful. Due to his failure to travel back to Syria, he decided to carry out an attack in Germany. His original idea was to attack cars and he started to build his explosive device which took him three months. During his time building the bomb, the German police raided the building he was living in but failed to arrest him. He was in constant contact with "one of the soldiers" of IS.

2016 Ansbach bombing

He conducted reconnaissance of the location a day before the attack. He also sent a video to the Islamic State, which was released by Amaq News Agency.

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The attacker, identified as Mohammad Daleel, possessed gasoline, chemicals, and other material that could be used to make a bomb, Bavarian Interior Minister Joachim Hermann said, as cited by AP. 

The attacker had also pledged allegiance to Islamic State (IS, formerly ISIS/ISIL) leader Abu Bakr al-Baghdadi on one of his phones.

"A provisional translation by an interpreter shows that he expressly announces, in the name of Allah, and testifying his allegiance to Abu Bakr al-Baghdadi, a famous Islamist leader, an act of revenge against the Germans because they're getting in the way of Islam," Hermann said at a news conference.

"I think that after this video there's no doubt that the attack was a terrorist attack with an Islamist background," he added.

IS has also claimed responsibility for the attack, according to Amaq news agency.

https://www.rt.com/news/353139-german-bomb-isis-link/

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Alireza Khodadadi said the man, whom he would identify only as Mohammed, had told him that the extremist Islamic State group was not representative of Islam.

The perpetrator had been denied asylum a year ago and had a history of making attempts on his own life. He had not been deported because of the continuing war in Syria. The reason why his application for asylum was refused has not been revealed.

The bomb was in a backpack carried by the dead man and contained enough pieces of metal to have killed many people, the Bavarian interior minister, Joachim Herrmann

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The attacker who left a bomb outside a bar in Ansbach, Germany, had enough materials to make another explosive device, according to police. The man also pledged allegiance to Islamic State in a video found on his phone.

Herrmann said it was likely the attack was the work of an “Islamist” suicide bomber. But Bavarian police said it was unclear if the attacker was Islamist

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(https://www.theguardian.com/world/live/2016/jul/25/ansbach-explosion-german-town-deliberate-blast-latest)