Police said 31-year-old Keith Lewis shot his pregnant wife -- 34-year-old Sarah Lewis -- at a Fayetteville apartment on Sunday night.
When police arrived at the home in the 900 block of Willow Street, they found Keith dead from a self-inflicted gunshot wound.
Sarah was taken to the hospital. Early Monday morning, Fayetteville police said she and the unborn baby had died.
Sarah was a paramedic with Harnett County Emergency Services.
"Sarah had an infectious smile and was a light everywhere she went," a post on the Harnett County Emergency Services Facebook page said.
Keith was a staff sergeant originally from Sarasota, Florida, a spokesperson said on Tuesday.