MIAMI -- The parents of Coral Springs boys who were hurt when they fell through a warehouse skylight are suing the property owner, claiming the place was an accident waiting to happen.

The boys had climbed a ladder to the roof of a warehouse, where lawyers said they had gone to bike, when they fell 30 feet onto concrete.

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"Kids in the neighborhood have set up skateboard ramps and such, and have been playing here for some time," said Mike Moser, of the Coral Springs Fire Department.

The children were on private property without permission, technically trespassing, but their families' lawyers said it was the property owners' fault for letting an abandoned property turn into a makeshift skateboard park.

Quincy Littles remains in a coma, although his lawyer, Justin Leto, said he was responsive on Thursday morning when his football coach told him to open his eyes.

"In a very subtle way, Quincy did try to open his eyes, and you could see he was struggling to follow his coach's instructions," Leto said.

The lawsuit, filed on behalf of Melissa Manhold and her son, Devin Harvey, who broke his arm, complained that the warehouse owners let their property, which sits across the street from Sawgrass Middle School, turn into an unsafe play area.

"There had to be multiple ways of easy access that could have been prevented by even plywood," said Alan Goldfarb, the family's lawyer.

The lawyers claim plywood, warning signs and fencing were put up after the boys fell and that photos they shot right after the incident show that the place was wide open.

On the day after the incident, Pan American Sites, Inc., which owns the site, issued a statement, saying in part, "It is regrettable and tragic that accidents can and will happen, despite preventative efforts and precautions."

A lawyer for the company claimed that the children squeezed in through a small hole in the wall, and denied that the property had been neglected.

Pan American Sites is headquartered in downtown Coral Gables. State records list its director as C. Lopez-Cantera. Apparently, that is not state Rep. Carlos Lopez-Cantera, NBC 6's Nick Bogert reported.

"I think it's my father, but it's definitely not me," Rep. Lopez-Cantera said.

Rep. Lopez-Cantera draws salary from at least two other Pan American companies located in the same offices as Pan American Sites, which is run by his father.

Rep. Lopez-Cantera said he has no idea about the claims in this case.

"I don't even know what condition the property was in," he said.

Rep. Lopez-Cantera said he knows only what he has read in the newspapers, despite his family's connection to the property.

Harvey's suit was filed on Monday, and another will be filed on behalf of Littles soon.

No specific amount of damages was listed.