A Riverside, Missouri teenager who sold a synthetic form of LSD that killed a 15-year-old boy has been sentenced to seven years in prison, the maximum penalty for involuntary manslaughter.

Krista Meeks, 17, pleaded guilty to first degree involuntary manslaughter, distribution of an imitation controlled substance, possession of marijuana and drug paraphernalia.

Platte County Prosecuting Attorney Eric Zahnd said, “This is a tragic case. One teen is dead and another will serve a substantial term in prison. If there was any doubt about the dangers of synthetic drugs prior to this case, there should be none now: those drugs are deadly.”

On October 3, 2013, Meeks sold an imitation form of “acid” to two boys, ages 14 and 15. Both boys were taken to Children’s Mercy Hospital on October 4 after taking the drug. The 15-year-old boy, who did not know that the drug was a synthetic form of LSD, died as a result of taking it.

Meeks told investigators she refuses to take the drug because its effects are “so harsh and violent.” She said she felt no obligation to warn the boys about the danger of the drugs, saying “if they are going to buy it, then they should know what they are taking.”

Kansas City, Kansas police later served a search warrant on a residence where the drug was allegedly being manufactured. Approximately 1,800 units of the drug were seized.

Judge Thomas C. Fincham sentenced Meeks to seven years in prison for first degree involuntary manslaughter, four years in prison for distributing an imitation controlled substance, and one year each for possession of marijuana and drug paraphernalia, the maximum sentences for each of those crimes. The sentences were ordered to run concurrently.

Another teenager, Jamell Montgomery, 18, of Kansas City, was also charged with distribution of an imitation controlled substance. He connected the boys with Meeks, so they could buy the drug. Montgomery was sentenced to four years in prison on May 5. That sentence will not be executed if Montgomery successfully completes five years’ probation after serving 120 days in jail.