Four upstate New York children who were poisoned and killed by their mother and grandmother had an allergy medication that induces drowsiness and kratom in their systems, according to a new report. The disturbing details into the horrific June murder-suicide in Mechanicsville were revealed in a toxicology report, sources told NewsChannel 13. Harper Harmon, 13, and his three younger siblings — Hudson, 11; Gracelynn, 10; and Gavin, 10 — were all given kratom and diphenhydramine, the ingredient in Benadryl, before they died, according to the report. Kratom — also known as “gas station heroin” — is a psychoactive herbal extract...