Sudanese ambassador says peace talks have collapsed

Sudanese rebel representatives in Abuja declared peace talks dead, vowing to wage war against the government. Negotiations were suspended following the Secretary of State's testimony. UN's Jan Bronk stated there is no genocide in Darfur, attributing killings to non-governmental forces.

What declaration did the Sudanese rebel representatives make regarding the peace talks in Abuja?

What is the overall sentiment expressed by the Sudanese rebel representatives about the government's actions?

What was the reason for the suspension of negotiations in Abuja?

Who is Mr. Jan Bronk and what did he confirm about the situation in Darfur?

What did Mr. Jan Bronk say regarding the responsibility of the Sudanese government for the killings?