Why was the United States involved in Patrice Lumumba's assassination?

Even in the late fifties, "the communists are coming..."paranoia had grips on the US, fanned by partisian politics of the far Right.
It isn't clear to me that the CIA was involved directly in the acutal assination, although they had prepared to do it.

http://www.usnews.com/usnews/doubleissue/mysteries/patrice.htm

So Patrice was spreading communism and the you think that the CIA killed him so that leads up to the suspicion of the United States?

Patrice was spreading communism. It is not clear the CIA killed him. Read the link I posted.

The United States' involvement in Patrice Lumumba's assassination is a complex and controversial topic. While it is widely believed that the CIA had a hand in planning or supporting his assassination, the exact extent of their involvement remains uncertain. To understand this better, it is important to examine historical records and different perspectives on the issue.

One reason often cited for U.S. involvement is the fear of communism during the Cold War era. Lumumba, the first democratically elected Prime Minister of the Congo (now the Democratic Republic of Congo), was seen as a leftist leader who had expressed interest in establishing ties with the Soviet Union. This was viewed as a threat to U.S. interests in the region, as they were concerned about the spread of communism.

However, it's essential to note that the CIA's direct role in Lumumba's assassination is not definitively confirmed. While there were CIA documents found suggesting the agency's involvement in planning his assassination, there is no concrete evidence linking them to the actual execution.

To delve deeper into this topic, I would recommend reading reputable sources, such as historical books, academic papers, and investigative journalism articles that discuss the Lumumba assassination in detail. Additionally, analyzing primary sources, personal accounts, and different perspectives will provide a more comprehensive understanding of the complex factors at play.