LAWRENCE, Mass (Court TV) — The trial was over, the mandatory life sentence imposed, and the judge gone from the bench, but cross-dressing dermatologist Richard Sharpe wasn't done testifying Thursday morning.

With his eyes darting wildly around a courtroom emptied except for bailiffs, lawyers and a few cameraman, the millionaire physician convicted of murdering his estranged wife, Karen, lurched forward in his leg irons and shouted, "I have a right to talk."

"I loved Karen," he cried as his lawyer, Joseph Balliro Sr., and several bailiffs tried to shush him. Straining toward the camera lenses, he yelled, "I'm sorry for what happened. I loved Karen."

For the victim's family and prosecutors, the outburst was just more evidence the controlling, manipulative personality that fatally shot the 44-year-old mother of three as she stood in her foyer July 14, 2000.

Kathleen Lembo, Karen Sharpe's sister, gave a victim impact statement to the judge.

"How could you say you love somebody that you murdered," an incredulous Kathleen Lembo, Karen Sharpe's sister, asked outside the courthouse. "I'm sure he has all kinds of agendas, but it's not something we're going to concern ourselves with."

Her brother, Jamie Hatfield, added, "As far as we're concerned he doesn't have a voice anymore."

A jury convicted Sharpe, a 47-year-old Harvard-trained doctor who dabbled in transvestitism, of first-degree murder Tuesday, rejecting his claim that he was insane at the time of the shooting. Under Massachusetts law, the verdict meant Judge Christine McEvoy had no discretion in sentencing him to life in prison without parole.

Before she imposed the sentence, McEvoy reviewed letters of support from Sharpe's siblings and others and listened as Lembo read a brief statement about the effect of the murder on the couple's three children.

"There is no excuse on earth for what he has done," Lembo said, as her husband, Victor, held her arm. Sharpe stared straight ahead and showed no emotion as she described the loss felt by daughters Shannon Sharpe, 28, and Alexandra, 6, and son, Michael, 9. The Lembos and Shannon Sharpe are raising the two minor children in Connecticut.

Shannon, Kathleen Lembo said, was preparing for her wedding without a mother's help in selecting a dress or picking flowers. Michael "will never be able to bring home his first true love for his mother's approval," and Alexandra graduated from kindergarten without her mother in attendance.

"Unfortunately, no ending would have brought Karen back to us," Lembo told the judge, adding, however, "We'll continue to see Karen. All we have to do is look into the eyes of her children and she'll be there."

Defense lawyer Balliro, who said he planned to appeal the case, told reporters outside the court that he had his client should not speak at the sentencing because of the raw feelings in the gallery packed with the victim's relatives.

"I felt the courtroom was too emotionally charged to make a statement that might result in a reaction from the family and friends of Karen Sharpe," said Balliro.