Family members on Saturday identified the firefighter who died while hiking Olomana Trail.
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They said he was Mitch Kai, 28, of Moanalua Valley.
"He was a kind, good-hearted person. He would help people that's what he would enjoy doing," said Geri Kai, Kai's mother.
Kai was Geri Kai's only child. He was a firefighter stationed in Kalihi for the Honolulu Fire Department for more than two years. His mother said he worked hard to get there.
He loved anything to do with the outdoors from hiking to surfing. He told his mother Friday that he was going for a hike.
"The weather, how its been that one side of the island is rainy, the other side is not, (I) figured he knew what he was doing, never imagined," said Kai.
But the unimaginable happened. He fell on the Olomana Trail just before 12:30 p.m. Friday. The Honolulu Fire Department said it was between the second and third peaks at one of the most difficult parts of the trail. Investigators said it was raining on and off that day and the rain may have caused the fall.
"When he climbed up the road he slipped. The rope slipped through his hand because I guess it was raining at the time," said Capt. James Todd with the Honolulu Fire Department.
Kai fell 50 feet. He later died from his injuries. The HFD rescue crews air-lifted him out to Maunawili Valley Park not knowing at the time he was one of their own.
Being a firefighter "became a passion with him, the camaraderie, the fellowship with the guys, the sincerity," said Kai.
His friend, a woman in her 20s who was with him on the hike,, and two men who were hiking behind them, were also flown down the mountain.
"The other hikers are not (physically) injured, pyschologically if anything because they were right there. One probably saw him fall and the other two heard," said Todd.
"He was just a good person, and for all the families out there cherish your children, cherish every moment," said Kai.