Puhovski said he was confident this person would contact chief state prosecutor Mladen Bajic in a few days.
Speaking to the press after a closed-door meeting with Osijek Mayor Anto Djapic, Puhovski said that before coming to Osijek he had spoken outside the city with "a gentleman who gave me some very precise information and about 20 documents" which he would hand to the State Prosecutor's Office.
According to Puhovski, the man claimed to be in the possession of correct information about some events from the autumn and winter of 1991 and about some names which correspond to what Puhovski knows from other sources.
Puhovski declined to identify the man, but said he had taken part in the contentious events in Osijek in 1991 and been a member of a unit called BOB (Branimir's Osijek Battalion).
According to Puhovski, the man he spoke to had not killed anyone but had been present at three murders, although not of Djordje Petrovic and Cedomir Vuckovic, who have been mentioned by the media, and that he knew about preparations for some other cases.
The press asked Puhovski if the man had mentioned Branimir Glavas, an independent member of parliament recently accused by a protected witness of having ordered the killing of Serb civilians in Osijek in 1991, when Glavas was chief of the National Defence Office in Osijek.
Puhovski said the man he had spoken to had mentioned his commander, but that it was not Glavas, and that this man felt that Glavas "was responsible in a broader context".
Puhovski said he had also been contacted by a man who identified himself with the alias Marijan, but that he stopped calling after the father of Krunoslav Fehir, the witness who has accused Glavas, had spoken to the press, claiming his son had disappeared.
"This isn't just about Osijek, because such things occurred in other towns as well, but about whether the rule of law in Croatia functions. Things are still very unclear, which shows that for 14 years what should have been done has not been done and that the responsibility lies with those who headed the police and the State Prosecutor's Office in the past," said Puhovski.
He added that he and the Osijek mayor had agreed the current situation should be defused and the people who knew something motivated to come forward so that talks could be held based on facts and not prejudices.
Commenting on the case of protected witness Fehir, who this week told the media he had killed at Glavas's orders, Puhovski said the State Prosecutor's office had probably concluded his testimony was not completely reliable.
Djapic reiterated that as mayor he was against the media trial of "a reputable citizen of Osijek" and that he wanted the allegations of war crimes in 1991 be investigated in line with the law.