At least 14 people who attended raves produced by two Los Angeles-based promoters since 2006 died from overdoses or in other drug-related incidents, a Times investigation has found. 

The deaths occurred during or shortly after concerts produced separately or jointly by Pasquale Rotella and Reza Gerami, according to an analysis of coroners' reports and law enforcement records from nine states.

Most of the deaths were linked to Ecstasy or similar designer drugs — hallucinogens tightly bound with raves, the analysis found.

Despite warnings of drug risks from law enforcement and health officials, the raves staged by Rotella's firm, Insomniac Inc., and Gerami's Go Ventures Inc. have received the blessing of local governments hungry for the revenue they deliver.

"It pretty well fills all the local hotels," said Judge Dave Barkemeyer, who issued a permit for a Rotella rave in Milam County, Texas. "It brings in a fair amount of commerce."

But with the revenue has come the risk of fatal overdoses.

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