Yes. To investigate the death of Daniel Smith. He concluded that it was a cocktail of methadone and two prescription anti-depressants that contributed to his death...but not in 'lethal doses' but as a combined affect. He also made the comparison (on ANS's death) that methadone, if present, could have triggered a genetic heart anomoly which would be deadly. ANS could have passed the genetic defect onto Daniel (and possibly DanniLynn). Wecht used a term (like) vexed as to how Daniel came to have methadone in his system...as the anti-depressants were prescribed for him, but he had no Rx for the methadone.
I suppose Daniel could have innocently decided to take his prescribed antidepressants by finishing off his mommas methadone-laced OJ? This is turning into quite a scandalous murder mystery.