A murder-suicide has been determined as the cause of the death of a Connecticut mother and her child in the upscale waterfront town of Westport, Connecticut, on Thursday, June 17.

Tracy Malon, identified by the medical examiner but called Tracy Do by authorities, 46, drowned her 7-year-old daughter Layla Malon and then died from “sharp-force trauma” in a home on Lyndale Park, as reported by the NewYorkPost.

News 12 Connecticut reporter Marissa Alter said that the mother was involved in a contentious custody dispute with the child’s father, Eric Malon. The procedures in that lawsuit began last October, according to the public docket.

Do submitted a lawsuit against Malon, alleging that she worked for his company without being paid. She requested damages of at least $15,000 in the complaint. In addition, Malon supposedly tried to remove Do from his home later, court papers stated.

According to the local law enforcement, authorities came to the approximately $1.8 million Lyndale Park residence around 4 p.m. Thursday, June 17, following a report of an unresponsive lady.

The woman had died inside the house, police said. Officers discovered the little girl, who was also deceased, after they explored the property further.

Residents in the neighborhood said the deaths of their neighbors came as a shock. The parents and their two kids, aged 7 and 14, were believed to be living in the house.

The family’s lavish Christmas displays were mentioned by a neighbor who was one of the first to move into the region in 1966. “They put all these lights up,” she recalled. “And the same for Halloween. It was incredible. It was unbelievable.” She remembered the youngsters being “all cute.”

Westport Schools Superintendent Thomas Scarice said in an email issued to parents whose children attend the local school system on Thursday night that the district had been notified “of the untimely and tragic loss of one of our parents and her beloved daughter,” calling the incident as an “unspeakable tragedy.”

“We want to express our deepest condolences to all those impacted by this heartbreaking loss,” Scarice wrote.

The 4,457-square-foot property is encircled by fence and only accessible through a gate. It is located on a private road off Weston Road. According to property records, the residence last sold for $515,000 in July 2010. The home’s current price is $1,768,000, following a report released at the beginning of this month.

“The entire community shares in their grief and sadness. Westport is a caring community and I know we will come together to support those who need to begin the healing process”, said Marpe, a Westport First Selectman.