Hello Darroth, all,
There are only three cases of Suicide in the Pali Canon:http://www.urbandharma.org/udharma/suicide.html
Regarding the Fire Element, it is said of Ven. Ananda: When Ananda was 120 years old, he felt that his end was near. He went from Rajagaha on a journey to Vesali, just as his Master had done. When the king of Magadha and the princes of Vesali heard that Ananda would soon attain final Nibbana, they hurried to him from both directions to bid him farewell. In order to do justice to both sides, Ananda chose a way to die in keeping with his gentle nature: raised himself into the air through his supernormal powers and let his body be consumed by the fire element. The relics were divided and stupas erected.
'Ananda Guardian of the Dhamma' Great Disciples of the Buddha p.182 by Helmut Hecker Wisdom Publlications ISBN 0-86171-128-9