Nora Nelson — or “Andi,” as Warren knew her growing up — was charged with murder on Feb. 6, in connection with the death of Joseph Donohue, 65, of Charlestown.

Nora Nelson appears in Massachusetts court on Friday, where she faced murder charges for the death of 65-year-old Joseph Donohue. She has pleaded not guilty (WCVB screengrab) ...

Nora Nelson, 24, was arraigned on a murder charge in the death of 65-year-old Joseph Donohue, who was found dead Sunday after police went to the marina to conduct a well-being check.

The Boston attorney who was found stabbed to death on his houseboat was wrapped and weighted down, a prosecutor said.

Prosecutors said Nora Nelson, 24, of Boston, stabbed attorney Joseph Donohue, of Charlestown, 67 times, including in the head where part of a knife was still lodged when he was found.

Nora Nelson is accused of murdering Joseph Donahue. Sources told 5 Investigates that Donohue, who lived alone on the houseboat with his two dogs, was stabbed dozens of times in the head and chest.

Boston lawyer Joseph Donohue suffered stab wounds on a houseboat before Massachusetts authorities arrested suspect Nora Nelson in his murder.

Nora "Andi" Nelson, arrested at the scene of a death at a Charlestown houseboat over the weekend, is now considered a “person of interest” in the man’s death.

Nora Nelson allegedly stabbed Joseph Donohue to death and strangled his dog earlier this year on Donohue's houseboat.

Nora Nelson, 24, of Boston, was arraigned on a murder charge at the Charlestown Division of Boston Municipal Court Friday. Judge Steven Kim continued the case to a March 6 pretrial hearing.

Nora Nelson — or “Andi,” as Warren knew her growing up — was charged with murder on Feb. 6, in connection with the death of Joseph Donohue, 65, of Charlestown.