Timothy Richard Lamere, 21, of Blaine, was charged with unintentional third-degree murder in the death of Trevor Vance Robinson-Davis, 19. Prosecutors say Lamere caused the death by providing him with a synthetic substance called 2C-E.

The complaint filed in Anoka County District Court said Lamere arrived at a party in Blaine with a bottle containing a substance that he said would cause hallucinations. Witnesses told police Lamere offered the drug to anyone who wanted it and that he poured it onto a table and divided it into lines.

Witnesses told police Lamere inhaled the drug, as did Robinson-Davis. The complaint said Robinson-Davis began punching walls and yelling, then appeared to stop breathing.

Preliminary autopsy results show Robinson-Davis died Thursday of cardiac arrest due to the toxicity of the drugs. He had no pre-existing natural disease that would explain his death, the complaint said.

Everyone who inhaled or ingested the drug appeared to have adverse side effects. When officers first arrived, they found a group of young people, ages 16 through 21, having trouble breathing. Some appeared to be hallucinating.

A message left Monday at Lamere’s home was not immediately returned.

Officials say 2C-E is a synthetic drug that can be bought online. It is a “cousin drug” to a banned rave-party drug. Sometimes known as “Europa,” 2C-E is not specifically listed as a “Schedule I” controlled substance, but a related substance known as 2C-B has been formally banned, and officials say the law allows for prosecution for “analogue” drugs.

The various 2C drugs fall into a family known as phenethlyamines — hallucinogens with similar chemical structures. They have effects comparable to much better known “club drugs” such as Ecstasy.

The drugs are often marketed on the Internet as “research chemicals” in an effort to skirt drug laws, and some suppliers claim they are not intended for human consumption.