Individual secret killings were carried out at later dates as well.

This led to accusations that the killing was carried out by Security forces or paramilitary allied with them.

Members of the task force assigned to the case had believed that killing was carried out by the same man.

When the killing was finally carried out, most of the suspects were rounded up within days.

Prosecutors have maintained that the killings were carried out with "a substantial knife."

United States officials say they believe all the killings were carried out by Communist rebels.

Witnesses have said the killings were carried out by Tutsi soldiers among the rebels.

But the killings planned in the conspiracy were not carried out, prosecutors said.

Both the method by which the killings were carried out and upon whom the blame rests remain points of contention.