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Two longtime Hamilton Southeastern teachers found dead earlier this week in their Fishers home died in a murder-suicide, police said Friday afternoon.

The finding by the Hamilton County coroner's office determined Kristal Sergi's death was a homicide, police said in a news release. She died from multiple gunshot wounds to the chest, the release said.

Frank Sergi shot himself once in the head, police said.

The coroner's office performed autopsies on the Sergis on Friday morning. The investigation is ongoing, according to the release.

Additional details on the deaths, such as a possible motive or what kind of gun or guns were used, have not been released. The department wasn't immediately available for comment Friday.

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Fishers police said the married couple were found dead Wednesday night after neighbors reported hearing gunshots. Their 10-year-old son wasn't at the home when officers found the bodies.

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The coroner's findings come a day after an emotional vigil at Hoosier Road Elementary, where Kristal Sergi, 44, taught preschool. Frank Sergi, 52, was an art teacher at Fall Creek Intermediate, according to the district. Both schools canceled classes Thursday and Friday.

In a Thursday afternoon statement, the district said Frank Sergi had been with the school system since 1992 and spent most of that time at Fall Creek. Kristal Sergi was "a member of the Hamilton Southeastern Schools family" for 21 years, according to the district.

"It was a challenging day for many of our students and staff as we continued to process the loss of two longtime educators," the statement read. "... We are grateful for the work of (the) Fishers Police Department, and we support their efforts in this ongoing investigation. Our hearts are with the affected families."

A spokeswoman for the district declined to comment further Friday.

A teacher at Hamilton Southeastern High School, Janet Chandler, told IndyStar on Friday that a lot of teachers knew the Sergis.

"(Frank) was an extremely talented artist himself ... some of his work at times has been displayed in the school," she said. "Kristal was extremely respected as a teacher. When people described her, they often used the word 'sweet.'"

DeAngela Taylor, who noted her two youngest children were taught by Kristal Sergi, said at Thursday's vigil that she had a "good heart." Taylor also noted she worked with Sergi in the district.

"She took good care of (my children)," Taylor told IndyStar. "I'm just really heartbroken."

Court documents show the couple were in the middle of divorce proceedings. They filed for divorce in Hamilton Superior Court in August.

Their home was also put up for sale about two months ago, according to online listings. Court documents list Kristal’s address as a nearby apartment complex in Fishers.

IndyStar reporter Vic Ryckaert contributed to this report.

Call IndyStar reporter Crystal Hill at 317-444-6094. Follow her on Twitter: @crysnhill.