Investigators found notes at the scene claiming responsibility on behalf of Islamic extremists, but quickly doubted their authenticity. Ralf Jaeger, the top security official in North Rhine-Westphalia state, said the suspect had hoped to earn millions. Prosecutors said they traced the computer used to purchase the put options to the luxury hotel in Dortmund where the team had been staying. "The explosive devices were detonated at the optimum time," prosecutors said, noting that the team bus was equipped only with security glass and not reinforced glass. Still, a 26-year-old Iraqi man detained after the attack was ordered held on suspicion of membership of IS.

Source: New Zealand Herald April 21, 2017 05:15 UTC