In a case that could bolster a long-running federal grand jury probe into Northeast Florida's construction industry, an undocumented Mexican worker permanently paralyzed on a job site is filing suit today in Jacksonville against homebuilding giant D.R. Horton. Jorge Gomez, 23, was injured Nov. 11 when a large beam fell on him and broke his neck at a D.R. Horton site in a Julington Creek subdivision, according to the lawsuit. The accident left him a quadriplegic. As an illegal alien, Gomez has no workers compensation insurance and has run up $500,000 in medical bills at Jacksonville's Memorial Hospital, which continues...