Morla concluded the statement by paying homage to the former Napoli great, "To define Diego in this moment of profound desolation and pain, I can say: he was a good son, he was the greatest football player in history and was an honest person".
Recordings from neighbourhood security cameras have been requested by three prosecutors working on the case.
In Italy, where the Argentine led Napoli to two Serie A titles, the competition unveiled detailed plans to commemorate Maradona, who died on Wednesday aged 60.
Six ambulances reportedly arrived to the Country Club San Andres, a private residential estate in the outskirts of Buenos Aires, where Maradona was residing since leaving hospital two weeks ago following brain surgery, but attempts to revive him failed.
Diego Maradona's lawyer and agent has demanded an investigation into the time it took for ambulances to reach the soccer legend's home earlier this week after he suffered a fatal heart attack.
His body was taken to presidential palace in Buenos Aires for a period of lying in state on Thursday, allowing his fans to bid farewell and pay final respects to the former athlete. It does not mean there are suspicions or irregularities, ' a judicial source said, requesting to remain anonymous. "You have to see if they did what they were supposed to do or if they relaxed".
"As Diego would say, you are my soldier, act with pity".
The prosecutor's office is awaiting the results of toxicological tests on Maradona's body.
Another nurse caring for Maradona was likely the last person to see the star alive, at dawn on Wednesday, prosecutors said in a statement on Friday.
"She did so by telling him that the cable had been cut".
"He knew that after victories I don't need phone calls, he knew that in hard moments he was always there and he was always saying after defeats: "Mo, don't forget, you are the best".
Investigators have also established that Maradona's personal doctor, Leopoldo Luque, had already made a 911 call at 12:16 pm, requesting an ambulance.