Following his recent death, tributes for conservative activist Charlie Kirk continue to come in.

Everband Stadium (Corey Perrine/Florida Times-Union-USA TODAY NETWORK via Imagn Images)

Before the Dallas Cowboys took the field on Sunday to take on the New York Giants, the organization was one of many teams that held a moment of silence in honor of Kirk.

Kirk, a conservative activist and Trump ally, was tragically shot and killed after a single bullet struck his neck while holding an event at Utah Valley University. The event was the first stop on Kirk’s “American Comeback Tour.”

Days later, the FBI announced the arrest of 22-year-old Tyler Robinson from Utah in connection with the “politically motivated assassination.” President Donald Trump made that announcement himself while revealing that Robinson’s father turned him in.

The Associated Press reported that Robinson’s father “saw surveillance photos and worked with a pastor to encourage surrender in Kirk’s killing.”

The Tennessee Titans, Miami Dolphins, New York Jets, New Orleans Saints, and Dallas Cowboys held moments of silence in honor of Christian Kirk, but not every team joined in.

Four NFL Teams Refuse To Honor Charlie Kirk

Multiple NFL teams hosting home games conducted pregame tributes to slain Turning Point USA founder Charlie Kirk.

Many fans remained quiet while the fan base of the Saints reportedly booed during the moment of silence.

All put Kirk’s photo on their video boards and asked the home crowd to stand and pay respects in the wake of Kirk’s shooting last Wednesday.

Mike Florio of Pro Football Talk would later report that four NFL games did not honor Kirk before their Week 2 games:

Bengals vs. Jaguars: No moment of silence
Lions vs. Bears: No moment of silence
Titans vs. Rams: No moment of silence
Ravens vs. Browns: No moment of silence

There’s still a Sunday night game and two Monday night games to be played, so we’ll see if any other teams decided to add their names to this list in week 2.