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Robin Westman -- the shooter who killed two children at the Annunciation Catholic School in Minneapolis this week -- went through a breakup shortly before going on the rampage ... according to new documents.

The Minneapolis Police Department released a report Friday about a conversation officers had with James Westman -- Robin's father. They say James told them Robin recently broke up with a significant other and had been staying with a friend after the split.

We spoke to a neighbor who said they've known the Westmans for years ... and, the neighbor tells us this relationship was tumultuous at times -- adding that Robin's parents begged Robin to end it. Gallery Launch Gallery AP

FBI Director Kash Patel said on X Wednesday Robin Westman was "a male bor

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