A double-murder defendant acting as his own attorney in Florida wrapped up his case Monday after shouting at jurors and prosecutors and acknowledging he killed his then-girlfriend.

Ronnie Oneal III admitted during closing arguments that he killed Kenyatta Barron but denied charges that he killed his disabled daughter and tried to kill his son.

“I want you to know the actual facts,” he told jurors. Then, turning to prosecutors, he said, “I did kill Kenyatta Brown. But I want you to tell it like it is, if you are going to tell it.”

Ronnie Oneal III becomes emotional while representing himself during closing arguments for his murder trial at the George E. Edgecomb Courthouse in Tampa, Fla., on Monday, June 21, 2021. (Ivy CeballoTampa Bay Times via AP)

Ronnie Oneal III becomes emotional while representing himself during closing arguments for his murder trial at the George E. Edgecomb Courthouse in Tampa, Fla., on Monday, June 21, 2021. (Ivy CeballoTampa Bay Times via AP)

A Hillsborough County jury began deliberating Monday afternoon.

Oneal, 32, acted as his own lawyer throughout the trial. During closing arguments, Hillsborough Circuit Judge Michelle Sisco intervened and warned him to stop using profanities.

The defendant spent most of his time Monday accusing the state of manipulating call logs and recordings for the night of the March 2018 killings. A state prosecutor called the claims "absurd."

Assistant State Attorney Ronald Gale speaks during closing arguments against Ronnie Oneal III at the George E. Edgecomb Courthouse in Tampa, Fla., on Monday, June 21, 2021. (Ivy CeballoTampa Bay Times via AP)

Assistant State Attorney Ronald Gale speaks during closing arguments against Ronnie Oneal III at the George E. Edgecomb Courthouse in Tampa, Fla., on Monday, June 21, 2021. (Ivy CeballoTampa Bay Times via AP)

Oneal, who earlier in the trial cross-examined a sheriff's detective before heartily thanking him for adopting his son, on Monday stridently criticized the move, suggesting it had prejudiced his son against him.

“You are ready to believe my son, whose statements are conflicting all of a sudden, because he has been adopted by a detective who worked in this case,” he said to the jury. “He had no business being around him in an open and pending case.”

The detective testified he worked the night of the attack but was not involved in the investigation.

Ronnie Oneal III represents himself during closing arguments for his murder trial at the George E. Edgecomb Courthouse in Tampa, Fla., on Monday, June 21, 2021. (Ivy CeballoTampa Bay Times via AP)

Ronnie Oneal III represents himself during closing arguments for his murder trial at the George E. Edgecomb Courthouse in Tampa, Fla., on Monday, June 21, 2021. (Ivy CeballoTampa Bay Times via AP)

Prosecutors say Oneal wounded Barron with a shotgun, then beat her to death. They say he used a hatchet to kill his 9-year-old daughter and wounded his son, then 8, with a knife. The daughter had cerebral palsy and could not speak.

Oneal is also accused of setting the family's Tampa-area house on fire. The son survived and testified last week by remote video that he saw his father kill his sister with the hatchet and recalled his mother being shot. When questioned by Oneal, the boy told his father, “You stabbed me."

Prosecutor Ronald Gale said during his closing argument that the state had proved beyond a reasonable doubt that Oneal was guilty of the double murder and attempted murder. Gale played a 911 call that included screams from Barron.

Ronnie Oneal III displays evidence while representing himself during closing arguments for his murder trial at the George E. Edgecomb Courthouse in Tampa, Fla., on Monday, June 21, 2021. (Ivy CeballoTampa Bay Times via AP)

Ronnie Oneal III displays evidence while representing himself during closing arguments for his murder trial at the George E. Edgecomb Courthouse in Tampa, Fla., on Monday, June 21, 2021. (Ivy CeballoTampa Bay Times via AP)

“This has been a very emotional case, and the evidence and testimony has been by turns gruesome and disturbing and just heartbreaking,” Gale said, asking the jury to put those emotions aside and deliberate on the facts.