Updated

The prosecution has rested in its case against a West Texas lawyer and former Carnegie Mellon University trustee accused of conspiring to launder hundreds of millions of dollars in drug money.

The trial of Marco Antonio Delgado moved into its fourth day Thursday. He's accused scheming to launder up to $600 million for a Mexican drug cartel in 2007 and 2008.

Agents have previously testified that after Delgado was arrested with $1 million, he confessed and agreed to cooperate but continued moving drug money behind his handlers' backs. Delgado says associates of Lilian De La Concha, the ex-wife of Mexico's ex-president Vicente Fox, asked him to help them move money from an inheritance.

Delgado gave a $250,000 endowment for a Carnegie Mellon scholarship named after him to assist Hispanic students.