Cancer Doctor Testifies on His Alleged Poisoning in Former Lover's Trial

— -- A cancer researcher will return to the stand next week in the trial of his co-worker and former lover who's accused of poisoning him.

Dr. Ana Gonzalez-Angulo is accused of poisoning Dr. George Blumenschein, an oncologist at the prestigious cancer hospital MD Anderson in Houston.

“She said she had a special Colombian coffee for me to try,” testified Blumenschein.

According to prosecutors, Gonzalez-Angulo, a fellow oncologist at MD Anderson, spiked the coffee with a sweet-tasting chemical used in antifreeze. The chemical is also commonly found in medical labs, including those at MD Anderson.

Prosecutors allege that Gonzalez-Angulo poisoned the coffee after Blumenschein picked his girlfriend over her.

Blumenschein said he asked Gonzalez-Angulo why the coffee tasted so sweet and that she responded that she had put Splenda in it.

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The poisoning left Blumenschein with permanent kidney damage, according to testimony from doctors who treated him.

Gonzalez-Angulo sat expressionless in the courtroom while Blumenschein testified. Next week, he will return to the stand when prosecutors play tapes of phone calls he had with Gonzalez-Angulo.

In his opening statement, Gonzalez-Angulo’s attorney, Derek Hollingsworth, said that his client "has been accused of something she did not do. Our first priority is to make sure the jury has the evidence to see that."