(CNN) A Michigan man who fired a gun at a teenager asking for directions was found guilty Friday of assault with intent to do great bodily harm in the April incident, which was captured on video in vivid detail.

The jury at Oakland County Circuit Court also found Jeffrey Craig Zeigler, 53, guilty of possession of a firearm in the commission of a felony.

Zeigler had been on trial on a charge of assault with intent to murder for shooting at 14-year-old Brennan Walker, who was not hurt.

Brennan was walking alone to school on April 12 after he missed the bus. As he trekked the 4 miles to Rochester High School in Rochester Hills, about 20 miles north of Detroit, he got lost and knocked on the doors of several houses, he said.

The teen went up to Zeigler's home and knocked on the door a few times.

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