The Dallas school district says rules were regularly ignored as coaches and other district employees conspired to falsify student residency documents to field talented basketball players.
The district earlier this month fired 15 employees, including the head coaches of top basketball programs in the state, after learning of the falsified documents.
Officials on Thursday then released the results of internal investigations showing how assistant coaches, athletic department administrators and others were involved.
Most of the fired employees were found to have approved residency documents without actually visiting a player's home.
The investigation began following the March death of Wilmer-Hutchins basketball player Troy Causey, who died in a fight with another teenager.
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Investigators learned Causey played for Wilmer-Hutchins even though he lived in Richardson.
