Sister of suspect in killing accused of being accessory; No help was summoned as woman was dying.

Byline: Scott J. Croteau

WESTBORO - For several hours Wednesday night, Maureen Rosiello lay on a couch in her Shrewsbury home suffering from a head injury, allegedly inflicted by her husband, Keith M. Rosiello.

Authorities allege that instead of calling police or an ambulance, Mr. Rosiello and his sister, Lisa Ricardo, who police said was there when the couple got into a fight, tried to perform CPR on the injured woman and attempted to monitor her vital signs throughout the night.

Ms. Ricardo awoke about 6 a.m. Thursday to her brother telling her that his wife was dead, according to a statement of facts on file in Westboro District Court.

The brother and sister then began washing the walls and boarding up windows, authorities allege.

"Rather than summonsing help or taking any other action, she and her brother essentially cleaned up the apartment, cleaned up the scene," Assistant District Attorney Anthony J. Marotta said yesterday in Westboro District Court as Ms. Ricardo was arraigned on being an accessory, after the fact, to murder and two counts of reckless endangerment of a child.

"All this had taken place with the couple's 12-year-old and 6-year-old children in the home," Mr. Marotta said. Family members of Mrs. Rosiello wept as he made that statement.

Ms. Ricardo, 38, of 106 Wilbur St., Raynham, allegedly told her brother sometime after being told that Mrs. Rosiello was dead that they needed to "buck up" and "do the right thing," court records say.

"Ricardo stated that it was her idea for her brother to contact an attorney and they both began boarding up the windows," according to the statement of facts written by Shrewsbury Detective Paul A. Brown.

Ms. Ricardo called her lawyer and the brother and sister had several conversations with the lawyer, authorities allege. About 12:15 p.m. - six hours after learning of her sister-in-law's death - Ms. Ricardo took her 12-year-old niece and 6-year-old nephew to her Raynham home, "still not calling police, still not calling authorities," Mr. Marotta told Judge Vito A. Virzi.

About 1 p.m. Thursday, Mr. Rosiello, 44, called police from his 32 Deerfield Road, Shrewsbury, home and told police that he and his wife had argued and she was not breathing.

Authorities are still awaiting autopsy reports from the state Office of the Chief Medical Examiner and did not release the cause or manner of death yesterday. Mr. Marotta said police found Mrs. Rosiello had "serious and obvious injuries." Detective...