Affidavit: Suspect claimed shooting of Rochester woman was an accident

Haydee Rivera-Nadeau, left and Lisa Rocheleau (Rivera-Nadeau/Strafford County Jail; Rocheleau (Courtesy)

ROCHESTER - The suspect in the death of a 50-year-old Rochester woman told an acquaintance the day after the shooting that her former lover's death was an accident, according to an affidavit filed a week ago by Rochester Police.
Haydee Rivera-Nadeau, 65, of 212 Old Dover Road, Somersworth, saw her charges elevated on Wednesday to second-degree murder, according to a press release from the New Hampshire Attorney Generals Office.
Lisa Rocheleau, of Rochester, died at Portsmouth Regional Hospital a week ago today. The bullet - likely from a small caliber handgun - was still in her head, according to the affidavit.
Rivera-Nadeau and Rocheleau had been in a longtime "toxic" relationship, according to a Gofundme page set up to help the family, which includes three sons.
"Lisa was finally happy for once in her life, after working up the courage to leave (the relationship)," the Gofundme page states.
A member of Rocheleau's family who discovered her on the floor of her business inside the Winter Street Professional Arts building in Rochester told police that Rivera-Nadeua "had a history of being verbally and physically violent," however no law enforcement agency had documentation of such.
A digital extraction of Rocheleau's phone revealed that Rivera-Nadeau had texted her regarding the possibility of her "cheating on her" within the week preceding the shooting.
On the day of the shooting, May 1, an employee of the suspect's pest control business said she got a call from her boss around 7:45 a.m. during which she said, "I love you, I'm sorry, I'm going away, please take care of my dog," the affidavit states.
Surveillance video at the 40 Winter St. building shows that a person identified as Rivera-Nadeau arrived at 6:39 a.m. and left the property at 7:16 a.m.
Police spoke with another acquaintance of the suspect on May 2, who said Rivera-Nadeau called her that day to tell her that the shooting was an accident, the affidavit states.
Also that, "she didn't mean to hurt anyone, that she just went to Lisa's office to drop off a plant" and "that they got into an argument."
According to the affidavit, "At some point she (Haydee) had the gun in her hand and it clicked. Lisa then got scared and went towards her (Haydee) and the gun accidentally went off and hit Lisa in the head."
Rivera-Nadeau then told the acquaintance she was on the run, because "the police won't believe it was an accident."
Rivera-Nadeau was arraigned on the new charge on Wednesday. She remains held at Strafford County Jail on no bail.
To contribute to the Gofundme page click here.