Let's not neglect the Radical Capitalist Terrorists:

Dortmund attack: man arrested on suspicion of share-dealing plot
Police believe 28-year-old German-Russian national attacked bus in hope of profiting from consequent fall in club’s stock

After the explosives attack on the Borussia Dortmund football team, police followed leads pointing to radical Islam, far-right hooligans and leftwing activists.

In the end, their investigations led them to an entirely new category of extremism: terror fuelled by financial greed.

On Friday, German police arrested a 28-year-old German-Russian national on suspicion of having carried out the explosives attack on Dortmund’s team bus in order to collapse the club’s share price so he could profit from stock market speculation.

Sergej W is also accused of having left behind several copies of a faked letter that tried to frame the attack as an act of Islamist terror....

On the day of the attack, 11 April, he had bought a put option – an option to sell assets at an agreed price on or before a particular date – on Borussia Dortmund’s shares, giving him the right to sell the shares for a specified price at a predetermined date.

Had the explosives killed a member of the team and the club’s share price dropped, the value of his put option would have increased significantly.

According to German media reports, Sergej W bought 15,000 put warrants for €78,000[[£65,300) and could have gained up to €3.9m as a result of a large drop in Dortmund’s shares....

The team bus was heading to their stadium for a Champions League match against Monaco last Tuesday when three explosions occurred....