Jessica Grubb died of 'oxycodone toxicity' on March 2
                                
                                
                                    (Newser) -
                                    "I have sobriety, good books, Netflix, and a wonderful family," Jessica Grubb  wrote from  a Michigan hospital on Feb. 23, ahead of hip surgery. On March 1, the 30-year-old recovering heroin addict left the hospital with an IV port in her arm and 50 prescribed pills of oxycodone....