Luke Monahan and his fellow Marines had a four-day pass for the long Memorial Day weekend that they planned to spend in Waikiki, but Monahan promised his mom and dad back home in Southern California Friday night that he would not drink.

So Eileen and Terry Monahan of Palos Verdes want to know why — and how — their 19-year-old son fell to his death Saturday morning from the Ilima Hotel.

"I want answers and I want to talk to the two Marines that were in the room with him," Eileen said. "I want to know if anyone gave him a drink because he was underage. I want to know if there was a fight or if there was a broken fence and he fell through it. He wouldn’t just jump."

Paramedics responded to a 7:58 a.m. call Saturday that a man had fallen and took Monahan to the Queen’s Medical Center in critical condition. He was pronounced dead at Queen’s at 12:22 p.m., police said.

The Monahans were scrambling for information Sunday on their son’s death and trying to sort out the conflicting reports.

Luke had gotten into "stupid, kid-stuff trouble" as a boy and was sent to an alternative high school in California where he saw the Marines as a ticket to his future, said his father, Terry Monahan.

"He was quiet," his mother said. "He wasn’t a bad kid. He just didn’t like to do homework. He said that if he went into the Marines he would get an education for free and get anything he wanted."

Luke joined the Marines at age 18, got his basic training at Camp Pendleton and shipped out to Marine Corps Base Hawaii in January.

"He did not like the Marines, but he seemed to be OK with Hawaii," Eileen said. "He wanted to spearfish and jump out of helicopters. I sent him a skateboard a month ago because he’s still a kid."

Luke had yet to see combat, so Terry Monahan was stunned to get a call Saturday night from a woman at Queen’s saying that his son had died.

"She told me he fell eight stories," Terry said. "My heart just dropped. How does someone fall eight stories?"

Luke’s trauma surgeon later told the Monahans that Luke had fallen from the 17th floor of the Ilima Hotel.

They did a Google images search of the hotel and found a structure with differing levels.

"Everyone agrees he fell on some sort of air-conditioning unit," Eileen said.

She refuses to come to Hawaii to claim her son’s body.

"I hate that place. That place killed my son," Eileen said. "I’m never going back there, ever. The Marines will ship his body to us."

A Honolulu police detective told the Monahans that Luke and his fellow Marines had been nightclubbing Friday night, but that no one saw him fall the next morning, Eileen said.

Just before Luke left his barracks Friday night, he was online with his parents via Skype and told them that one of his Marine buddies had booked a hotel room in Waikiki.

Eileen told her son that he looked tired and warned him to be careful.

"I said, ‘Luke, remember you’re only 19. Don’t drink, don’t do anything bad.’ He said, ‘I’m OK. I won’t drink.’ I don’t know what he did when he went out."

Luke left his computer on and Terry Monahan’s last image of his son was watching him get dressed and close the door to his room.

Now Terry wants to know what happened just before his son’s death.

"Were they playing games?" Terry asked. "Were they trying to stand up on the balcony? Was Luke just so tired he couldn’t get his balance?

"It just seems so odd."