New charges filed against a Colorado dentist accused of fatally poisoning his wife’s protein shakes focus on his alleged efforts to kill a detective involved in the case, authorities said.

Colorado dentist James Craig, whose attorney withdrew just one day before his trial, was previously accused of attempting to plant evidence to fabricate a suicide scenario for his wife and of hiring women to falsely claim they had affairs with him.

Colorado investigators say an Aurora dentist accused of killing his wife with poisoned milkshakes also attempted to have a detective investigating the case murdered. KUSA's Kevin Vaughan reports.

A dentist accused of killing his wife by poisoning her protein shakes has been charged with trying to get a fellow jail inmate to kill a detective investigating the murder case. Prosecutors filed two new charges against James Craig last week — solicitation to commit murder as well as solicitation to commit perjury.