 At the time of his death, Lohman was the Dean of the School of Criminology in Berkeley.On the 18th anniversary of the disappearance of the Grimes sisters, Ernest Spiotto, the sole detective who had been involved in the investigation of the girls' murders from the very beginning and who remained assigned to the investigation, again announced to the media the police had no credible suspects in the case.Officially, the murders of the Grimes sisters remain unsolved, although this is an open case.