A financial trader has been charged by German police with perpetrating last week's attack on the Borussia Dortmund team bus.
Prosecutors say the 28-year-old, identified only as Sergej W, wanted to make money on a fall in the club's share price by causing a series of explosions outside the bus, which was carrying Dortmund's players to their Champions League tie with Monaco last Tuesday (April 11).
It is claimed that the suspect, a dual German-Russian national, bought 15,000 'put' options - contracts which would allow him to sell shares at a pre-arranged price - in Dortmund just hours before the attack.
Prosecutors have claimed the suspect took out a five-figure loan to fund the stock purchase.
"If the shares of Borussia Dortmund had fallen massively, the profit would have been several times the initial investment," the prosecutor's office said.
Sergej W is accused of attempted murder, inflicting serious bodily harm and causing an explosion.
A variety of possible motivations had previously been put forward for the attack. Some had claimed the attacker was an islamist, while others said they belonged to a far-left terror cell. However prosecutors now believe greed, rather than political or religious affiliation, underpinned the incident.
The attack left Dortmund defender Marc Bartra injured and caused the postponement of the match by a day. Dortmund lost 3-2 when it eventually took place, and also lost the return leg in France this week to be eliminated from Europe's Premier club competition.