Dee Dee Moore was in tears Wednesday after hearing opening arguments in her own murder trial.

Moore took advantage of Abraham Shakespeare, prosecutors said. She used her business savvy to gain access, swindle millions from him and ultimately kill him and have his body buried in a concrete slab.

Prosecutor Jay Pruner laid out that argument Wednesday morning in a Tampa courtroom in the murder trial against Moore. She is charged with first-degree murder in the 2009 death of Shakespeare, a 42-year-old Polk County man who won a $30 million Florida Lottery jackpot in 2006.

Pruner said Moore is a money-hungry murderer who took calculating moves to hide her steps from Shakespeare's family, friends and authorities.

"Within 60 days of being divested of everything he owns to Dee Dee Moore," Pruner told jurors Wednesday. "...all that's left of Abraham Shakespeare is his decaying body in a grave under a concrete slab under a house that she bought on Highway 60 near Plant City."

Throughout Wednesday's morning proceedings, Moore extensively wrote notes to her lawyer. At one point, she appeared to tear up.

Moore's lawyers introduced their case shortly after, saying all the evidence against their client is circumstantial.

"She at no point either admits or implies that she killed Mr. Shakespeare or had any part in helping anyone else to do so," her lawyer said.

They said no proof exists that she killed him or that a gun she owned was even used in the killing.

But when prosecutors called Moore's ex-husband to the stand, he testified he unknowingly dug Shakespeare's grave for Dee Dee Moore.

“She called me one afternoon, told me she had some debris and stuff from the house she was remodeling and needed to bury it and asked me to come dig the hole and so I went over and I dug it,” James Moore said.

After digging the hole, James Moore testified he left, not asking any questions. Then, he said Dee Dee Moore called him back three hours later to fill the hole.

“She (looked) like she had been working, she was a little sweaty and she had been working,” James Moore said.

The trial is expected to last about two weeks.