In the week before the shooting, Mr. Barisone had called 911 several times, claiming that she and her fiancé were squatters on his farm, and were harassing him; in one call, Mr. Barisone described the conflict as “a war. And it’s going to be dealt with.”

Ms. Kanarek survived the attack, but was placed in a medically induced coma. Finally, after an extensive surgery to repair damage from a bullet to her left lung, and more than a week of hospitalization, she had recovered enough to start reconnecting with the world.

The first thing she saw, she recalled, were comments that “wished I was dead.”

“They know there is a person suffering multiple gunshot wounds, bullet wounds,” she said in an interview, her voice raspy where the ventilator had damaged her vocal cords. “To say those things, is something no one could ever imagine.”

Seldom do attempted murder cases elicit sympathy for the suspect; rarer still are cases where the victim is blamed. And yet Ms. Kanarek somehow found herself the target of an online lynch mob.