A man identifying himself as Zachary Cruz, the brother of the teen accused of gunning down 17 people in a school shooting last week, has shared messages and photos on social media cryptically addressing his brother’s role in the deadly massacre earlier this month.

Two posts on a Facebook profile attached to the name Zachary Cruz were made public over the weekend: One post includes a photo of two young boys and their dogs by a pool, with the message: “Reminiscing.”

On February 24, the first post that is publicly visible, the person identifying as Zachary wrote, “Appreciate all the positive messages.”

The photos of the half-brothers on the Facebook page appear to be well over a decade old — Nikolas is now 19 and Zachary is 17 — but one of the boys in the photos does resemble the shooting suspect. Zachary has not spoken publicly about the February 14 massacre, when his brother Nikolas is accused of killing 17 people at Marjory Stoneman Douglas High School in Parkland, Florida.

As CrimeOnline previously reported, Zachary is believed to have been involuntarily committed to a mental health facility in the days following the school shooting. According to the Seattle Times, Zachary and Nikolas are half brothers who share the same biological mother but have a different father. When Nikolas was two years old and Zachary was two months old, Roger and Lynda Cruz adopted him. Nikolas reportedly witnessed his father die of a heart attack when he was only five years old, and Lynda Cruz died after a brief illness on November 1.

CrimeOnline has reached out to the person behind Zachary Cruz’s Facebook profile for comment, and they did not immediately respond.

[Feature image: (unconfirmed) Nikolas and Zachary Cruz/Facebook]