Suffolk DA speaks, saying suffering 'will never end'

"That was spectacularly impactful," Suffolk District Attorney Ray Tierney said of the victim statements.

Tierney is asking the court to sentence Heuermann to the bargained-for disposition, which will see him spend his life in prison without parole.

"Eight young women were needlessly and brutally murdered at the hand of this defendant," Tierney said.

The district attorney thanked the families for sharing their pain in a way he never could.

"The effect this case has had on them is overwhelming," Tierney said. He said the suffering "will never end" for the eight families.

Tierney said Heuermann enjoyed a "twisted satisfaction" from his crimes, calling out statements Heuermann's family and a therapist made about meetings with him in a Peacock documentary. He said he manipulated his family to get them to do that.

Tierney — who previously expressed interest in personally trying the case — said Heuermann is only "sorry he got caught."

"Who this defendant truly is is seen in that planning document," Tierney said.

He said Heuermann planned out killings as if he were solving a math problem or writing a grocery list.

"No concern for the victims and the pain he inflicted upon them whatsoever," Tierney said.

Tierney also addressed the measures Heuermann took to commit the killings, sending his family out of town and using burner phones and fictitious email accounts to contact victims.

"Once someone was marked for death, he used four burner phones he used exclusively to [kill] the Gilgo Four."

Tierney said Heuermann believed he couldn't be traced when he was searching for information about his victims' families. "He thought he was smart. He was wrong."