RIVERSIDE — A convicted arsonist was sentenced to death Friday for setting a Southern California wildfire that claimed the lives of five federal firefighters as they struggled to defend a rural home from raging wind-driven flames.

Raymond Lee Oyler, 38, was found guilty in March of five counts of first-degree murder for setting the Oct. 26, 2006, blaze about 90 miles east of Los Angeles.

“After evaluating the same evidence that the jury had heard and going through that, I find that the aggravating circumstances do outweigh the mitigating circumstances,” Riverside County Superior Court Judge W. Charles Morgan said.

“In particular, Mr. Oyler set on a mission … to wreak havoc in this county by setting fires by his own design for his own purposes and as proven by the evidence he became more and more proficient,” Morgan said. “He knew that young men and woman would put their lives on the line to protect other people and property and he continued anyway.”

The firefighters’ deaths stunned the region and some 10,000 people attended the memorial service for Jason McKay, 27; Jess McLean, 27; Daniel Hoover-Najera, 20; Mark Loutzenhiser, 43; and Pablo Cerda, 23.

Relatives of the victims addressed the court during the sentencing hearing.

“The damage done to our family can never be repaired,” said Josh McClean, brother of Jess McClean. “He stole something from us that he cannot repay. To sit in the courtroom and watch the defendant smile and wave to his family, that’s something that we no longer have the opportunity to do.”

Oyler, a former auto mechanic with a young daughter, was also convicted of 20 counts of arson and 17 counts of using an incendiary device for a rash of blazes in the area that year.

His daughter wept when the sentence was pronounced.

The fatal blaze began on a hillside in the town of Cabazon and spread quickly from a valley floor up the north side of the mountains to the widely dispersed rural community of Twin Pines.

There, the fire overran the crew of U.S. Forest Service Engine 57 as the men tried to defend an unoccupied home at the top of a steep hill. Three firefighters died there and a fourth died soon after at a hospital. The fifth died five days later, the same day Oyler was arrested.

The blaze, known as the Esperanza Fire, also destroyed 34 homes and 20 outbuildings and charred nearly 70 square miles of terrain.