With Luigi Mangione, the suspected killer of United Healthcare CEO Brian Thompson, due back before a judge today, women supporters filled the hallways of the courthouse in lower Manhattan hours before his arrival and among those looking to snag an open seat in the court room was activist Chelsea Manning.

The former Army intelligence officer who served seven years in prison for violating the Espionage Act for leaking military cables to WikiLeaks before having her sentence commuted by then-President Obama was one of the 100 supporters of Mr. Mangione at the Manhattan Supreme Court on Friday arriving in the early morning, about six hours before the scheduled hearing.

“I am here exercising my Sixth Amendment right,” Ms. Manning said to PEOPLE magazine, referring to the constitutional amendment that protests the rights of those accrued of crimes. “I am a member of the N.Y.C. public here to witness our court proceedings.”