Police-Line-Tape-Do-Not-Cross-psd6657.pngA second person has died after apparently overdosing on a drug taken at an electronic music festival at Daly City’s Cow Palace late last month.

Trung Nguyen, a 25-year-old San Jose man, died Sunday at Washington Hospital in Fremont, according to the Alameda County coroner’s bureau. He had been admitted to the hospital after falling unconscious from a suspected overdose of the drug ecstasy and had been on life support until Sunday.

An autopsy was conducted today and the official cause of his death is pending toxicology results.

Similar apparent overdoses claimed the life of another young man, 23-year-old Santa Clara resident Anthony Mata, on May 30 and left seven more people ill, Daly City police Sgt. David Mackriss said last week.

The victims became sick after taking a drug believed to be ecstasy at the “etd.POP 2010” music festival May 29 night at the Cow Palace, police said.

Officers arrested 68 adults and five juveniles on suspicion of possessing or selling drugs at the festival. The event lasted from 6 p.m. May 29 to 2 a.m. May 30 and had an estimated attendance of 16,500.

Police also seized 800 ecstasy tablets with a street value of $16,000, and other drugs including LSD, cocaine, methamphetamine and marijuana. About $5,000 in cash was confiscated, officials said.

Samples of the confiscated drugs are being examined by toxicologists.

In 2002, two people died of drug overdoses linked to the same music festival, according to Mackriss.

The San Mateo County Board of Supervisors will consider a resolution at its board meeting Tuesday to support legislation opposing raves at the Cow Palace.

State Sen. Leland Yee, D-San Francisco, has also expressed his support for legislation that would limit or ban rave events at the state-owned venue.

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