“
His son, Joseph, an organic chemist, had once announced that he'd decided early on against forensic toxicology: he could never have so many lives and deaths on his conscience. His father understood him. Because sometimes the dead did walk in Alexander Gettler's sleep, sometimes they rattled in the black chair of Sing Sing, and always, as he admitted in that last vulnerable interview, 'I keep asking myself, have I done everything right?
”
”
Deborah Blum (The Poisoner's Handbook: Murder and the Birth of Forensic Medicine in Jazz Age New York)