OTTAWA — After widespread protests over the acquittal on murder charges of a Saskatchewan farmer who shot and killed a 22-year-old Cree man, members of the victim’s family began a series of meetings on Monday with government officials, including Prime Minister Justin Trudeau.

Indigenous leaders and supporters across the country had expressed anger and disbelief on Friday night over the verdict in the case involving the death of Colten Boushie, who was killed in 2016.

Many of them, including Mr. Boushie’s family, said the case revealed significant flaws in how Canada’s legal system dealt with cases involving Indigenous people.

The trial of Gerald Stanley, the farmer, was also marred by ugly, often racist online messages by his supporters. Mr. Stanley testified that he had unintentionally shot Mr. Boushie in the back of the head when his semiautomatic pistol experienced a rare mechanical malfunction. Experts were unable to replicate the failure.