Investigation: (A) July 15, 2009: Although the police had now questioned about 600 people, they reported that there had been no leads in the case. The police also stated that they were following up on the possibility that the arson attack had been a random criminal offence. (b) July 28, 2009 A police spokesman now announced that the crime might remain unsolved. A newspaper report later stated that the attackers might never be identified or brought to justice. (c) August 12, 2009 The police arrested twelve alleged extremists from Silesia and North Moravia in connection with the attack. Some of those arrested were charged the same day. (d) August 14, 2009 The police charged four of the twelve arrested with attempted homicide. The other eight were released. (e) January 25, 2010 The police investigation was formally closed, and the files handed over to the public prosecutor's office. (f) February 25, 2010 The accused were indicted on charges of attempted multiple homicide and of damage to property. If convicted, they could expect lengthy prison terms. (g) October 5, 2010 In her closing submission the prosecutor requested that three of the accused should each receive an "exceptional penalty", reflecting the aggravated nature of the offences alleged. For the fourth accused she requested a term of imprisonment based on the general range of terms for a murder conviction. The prosecutor claimed that the accused knew very well, from their detailed planning, that the house was inhabited by numerous people, and that they knew about the ethnicity of the residents, which was the principal motive for the attack, and that they intended either to burn their victims to death or else to inflict life threatening injuries on all of them. The prosecutor asserted that the criminal acts were committed in order to honour the upcoming birthday of Austrian-born Adolf Hitler