There is a more detailed article about this in The Gray Zone website. They collected almost all details from relevant news. (interviews with the apache pilot, witnesses, etc.) Here are some parts of the pilot interview:
In an interview with Israel’s Mako news outlet, one Apache pilot reflected on the tortuous dilemma of whether to shoot at people and cars returning to Gaza. He knew that many of those vehicles may have contained Israeli captives. But he chose to open fire anyway. “I choose targets like that,” the pilot reflected, “where I tell myself that the chance that I am shooting here on hostages as well is low.” However, he admitted that his judgment “was not 100%.”
“I understand that we have to shoot here and quickly,” the commander of the Apache unit, Lt. Col. E., told Mako in a separate report. “Shooting at people in our territory – this is something I never thought I would do.”
Lt. Col. A., a reserve pilot in the same unit, described a fog of confusion: “I find myself in a dilemma as to what to shoot at, because there are so many of them.”
And another Fact check is published in Fact Crescendo. Here are a few lines from it:
The video shows missiles hitting cars, trucks, motorcycles, and people on foot as pilots report hundreds of gunmen sweeping into Israel to attack nearby communities, the Times of Israel reported. (Archived)
However, there have been few reports, like that of this interview with Yasmin Pora, a survivor of the bloodshed at Kibbutz Be’eri near the boundary with Gaza, that state that Israeli forces could have unintentionally killed their own.
She states that Israeli civilians “undoubtedly” were tragically killed by their own security forces during the intense confrontation while the Hamas fighters were trying to take back the captured Israeli hostage inside Gaza. The same was detailed in this Israeli news report as well.
The police investigation also found that an Israeli military helicopter opened fire on the assailants but also hit some people attending the festival. No further details were provided, Haaretz reported.
“An investigation into the incident revealed an [Israeli military] combat helicopter that arrived at the scene from the Ramat David base fired at the terrorists and apparently also hit some of the revelers there,” the news report cited an unnamed police official as saying.