[JURIST] A Serbian who may prove to be a key witness in the trial of former Yugoslav President Slobodan Milosevic [BBC profile, JURIST news archive] was arrested in Madrid for the murder of a human rights leader in Kosovo, Spanish police said Monday. Veselin Vukotic and two other men allegedly shot and killed Enver Hadri, an ethnic Albanian and advocate of independence for Kosovo [JURIST news archive], in Belgium in 1990. Hadri was carrying papers that supposedly tied Milosevic to 34 murders when he was killed, and Vukotic was believed to have been acting under orders from the Yugoslav secret service.

Vukotic was arrested at Barajas International Airport in Madrid pursuant to a Belgian warrant, and he is set to appear before the National Court in Madrid. AP has more. El Pais has local coverage [in Spanish].