An 8-year-old cried “daddy, I’m sorry” as a Texas father slit his children’s throat on Saturday, then called his estranged wife to tell her he left her a “present,” court documents show.

Jean Pierre Ndossoka, 62,  a visa lottery winner from the Congo was charged Tuesday with two counts of capital murder in the deaths of his two children, 8-year-old Marcel Ndossoka and 1-year-old Anna-Belle Faith Ndossoka, in his Houston apartment. The children’s mother, Sabine Ntongo, discovered their bodies after receiving a disturbing call from her estranged husband.

In this Saturday, Aug. 4, 2018, photo, the mother, center, of two young children is comforted after she found them stabbed to death in their father's apartment in Houston. Authorities say that Jean Pierre Ndossoka, the man suspected of fatally stabbing his two children, has been hospitalized after police found him Sunday with a self-inflicted gunshot wound in his car. Court records show he has been charged with capital murder. (Elizabeth Conley/Houston Chronicle via AP)

The mother, center, of two young children is comforted after she found them stabbed to death in their father’s apartment in Houston.  (AP)

According to court documents released Tuesday, the Houston father slashed his two children’s throats as they cried and begged. Ndossoka told police his daughter “just kept crying” as his son mumbled his last words.