The rebels accepted the United States version of events in their statement today, several days after they said they would investigate the deaths.
But he called for talks, saying the rebels could not accept unilateral decisions by the Government.
The famous rebel accepted the title of curopalates and died several days later, presumably on April 2.
Last spring, the rebels accepted a Government offer to begin peace talks.
The President also offered to step down if the rebels accepted a truce, but the deal was rejected.
Finishing their political talk, the rebels accepted 12 frozen chickens from the driver of a passing delivery truck and slowly moved out of town.
Nor, he added, would the rebels necessarily accept a deadline of 90 days.
Economically exhausted and militarily defeated, the rebels accepted Caxias' terms of surrender.
The parties made an agreement under which the rebels accepted the King's rule and they were granted a royal pardon on 29 October 1403.
But Marcos said the rebels had accepted the agenda only under Government pressure to get the dialogue started.