Maybe the majority of Muslims don’t want anything to do with Sharia, but there are plenty of radical Islamists among the homegrown Muslims. Alija is a Fundamentalist and so is his party.
http://www.senate.gov/~rpc/releases/1997/iran.htm
3. The Radical Islamic Character of the Sarajevo Regime (page 8): Underlying the Clinton Administration's misguided green light policy is a complete misreading of its main beneficiary, the Bosnian Muslim government of Alija Izetbegovic. Rather than being the tolerant, multiethnic democratic government it pretends to be, there is clear evidence that the ruling circle of Izetbegovic's party, the Party of Democratic Action (SDA), has long been guided by the principles of radical Islam. This Islamist orientation is illustrated by profiles of three important officials, including President Izetbegovic himself; the progressive Islamization of the Bosnian army, including creation of native Bosnian mujahedin units; credible claims that major atrocities against civilians in Sarajevo were staged for propaganda purposes by operatives of the Izetbegovic government; and suppression of enemies, both non-Muslim and Muslim.