(AP) — Gilroy police say they have identified an additional person who suffered a gunshot wound during a deadly shooting at a famous garlic festival last month.

Authorities say a 58-year-old man sustained a graze wound to his head that required stitches. The man’s injuries bring the total number of people shot during the July 28 shooting to 17. An additional three people — including two children — were shot and killed when Santino William Legan opened fire. Legan killed himself at the festival.

Officials say they believe all of the gunshot wound victims have now been identified. It was not immediately clear what led them to the latest victim.

The FBI has opened a domestic terrorism case. Although authorities found a “target list” containing religious institutions, courthouses and other sites, they say they have not determined Legan’s motive.