CLOSTER, N.J. (CBSNewYork/AP) — Authorities continue to seek a motive for the apparent murder-suicide deaths of a couple found in their northern New Jersey home along with their unharmed toddler son.

Bergen County Prosecutor John Molinelli said Sunday that Michael Tabacchi, 27, died from a self-inflicted stab wound to the chest. His 41-year-old wife, Iran Pars Tabacchi, who went by the name Denise, died from strangulation and a single stab wound to her chest.

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The couple and their 15-month-old son were found late Friday night in their Closter home, shortly after the stabbings occurred. One knife was found, apparently a kitchen knife, near Michael Tabacchi’s body.

Scene outside of apparent murder-suicide in Closter, New Jersey on Feb. 7, 2015 (credit: Darius Radzius/1010 WINS)

Scene outside of apparent murder-suicide in Closter, New Jersey on Feb. 7, 2015 (credit: Darius Radzius/1010 WINS)

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A neighbor who lives next door to the home told 1010 WINS’ Darius Radzius that Michael Tabacchi’s father received a text message from his son that prompted him to head over to their home.

The neighbor, who is an assistant fire chief, called 911 while his wife, an EMT, went over to the residence with Tabacchi’s father to render aide, Radzius reported.

The toddler is now being cared for by relatives.

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