Two families whose teenage children died by suicide using a chemical bought on Amazon are suing the tech giant, accusing the company of knowingly selling a dangerous enabler. Kristine Jonsson, 16, of Hilliard, Ohio, took her own life on September 30, 2020, while Ethan McCarthy, 17, of Milton, West Virginia, died by suicide on January 7, 2021. The families are not connected, but both contracted the same Brooklyn law firm. Both teenagers killed themselves using sodium nitrite - a chemical used to preserve foods but lethal in high doses - which they had bought on Amazon. The drug is promoted...