Dutch Filmmaker Theo Van Gogh Murdered.

Filmmaker Theo van Gogh had been threatened after the August airing of the movie “Submission,” which he made with a right-wing Dutch politician who had renounced the Islamic faith of her birth. Van Gogh had received police protection after its release.

Dutch national broadcaster NOS and other media reported that Van Gogh’s killer shot and stabbed his victim and left a note on his body. NOS said witnesses described the attacker as having an “Arab appearance.”

A witness who lives in the neighborhood heard six shots, and saw the man concealing a gun. She said he walked away slowly, spoke to someone at the edge of the park, and then ran.

“He was walking slowly, like he was trying to be cool,” she said, describing him as wearing a long beard and Islamic garb. “He was either an Arabic man or someone disguised as a Muslim,” she said.

Another witness told Dutch Radio 1 the killer arrived by bicycle and shot Van Gogh as he got out of a car. “He fell backward on the bicycle path and just laid there. The shooter stayed next to him and waited. Waited to make sure he was dead.”

The slain filmmaker was the great grandson of the brother of famous Dutch painter Vincent van Gogh, who was also named Theo. In a recent radio interview, Van Gogh dismissed the threats and called the movie “the best protection I could have. It’s not something I worry about.”

Dutch Prime Minister Jan Peter Balkenende called on the Dutch people to remain calm.

“Nothing is known about the motive,” he said in a written statement. “I want to call on everyone not to jump to far-reaching conclusions. The facts must first be carefully weighed so let’s allow the investigators to do their jobs.”