The march has since become an annual event regularly attended by anti-death penalty activists from across Texas and other states, and Europe.
[2] Randall Dale Adams and Kerry Max Cook, innocent men who had been exonerated after spending years on Texas Death Row, both testified in favor of the moratorium legislation.
She testified that two innocent men, Christopher Ochoa and Richard Danziger, had been wrongfully convicted of her daughter's murder and had spent twelve years in prison before being exonerated and released.
[3] The real killer of her daughter, Achim Joseph Marino, was later convicted and sentenced to life in prison after Popp asked the district attorney not to seek the death penalty against him.
[7] Newton was the first African-American woman executed in Texas since a slave named Lucy was hanged March 5, 1858, in Galveston County for murder.
In 2007, the Network collected signatures from members of the general public on a judicial complaint with the State Commission on Judicial Conduct against Sharon Keller, presiding Judge of the Texas Court of Criminal Appeals, after she said "We close at 5" and refused to accept an appeal 20 minutes after 5 pm from Michael Richard's attorneys on the day of his execution.
[8][9] The U.S. Supreme Court had earlier accepted for consideration Baze v. Rees from Kentucky, in which two death row inmates were challenging the constitutionality of lethal injection as a method of execution.
In 2009, the Network led an advocacy campaign to pass a bill to end the death penalty for people convicted under the law of parties.
[14] The Network held an international, all-media, juried art show on the death penalty in Austin, Texas, at Gallery Lombardi May 6–22, 2006, entitled "Justice for All?
The death penalty art show was investigated under the "Notoriety for Profit" law by the Austin Police Department at the request of Andy Kahan, the City of Houston Mayor's Director of Crime-Victim Services.
Students participating in the alternative spring break in 2006 traveled to Huntsville, Texas to take part in a protest of the execution of Tommie Hughes on March 15, 2006.
Standing outside the gates of the Texas Governor's Mansion with hundreds of supporters, the families of Willingham and De Luna delivered separate letters to Governor Perry asking him to stop executions and investigate the cases of Willingham and De Luna to determine if they were wrongfully executed.
After DPS troopers refused to take the letters, Mary Arredondo, sister of Carlos De Luna, and Eugenia Willingham, stepmother of Todd, dropped them through the gate of the governor's mansion and left them lying on the walkway leading to the main door.
She became intimately familiar with the many flaws of the Texas criminal justice system after two innocent men were wrongfully convicted of her daughter's murder and spent 12 years in prison.
Popp successfully pressured the Travis County District Attorney not to seek the death penalty for her daughter's murderer.
Members of Campaign to End the Death Penalty responded positively to the idea and the "March on the Mansion" was held on October 15, 2000.