Two people were found dead and a baby was found alive Monday inside a Pennsylvania home in what has become a double homicide investigation.

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A grandfather made the discovery about 3:30 p.m. at the home on West Fifth Street in North Vandergrift, police said.

The Armstrong County Coroner’s Office identified the adults as Dawayne Klingensmith, 29, and Heather Swiklinski, 22. They were pronounced dead at the scene.

A 17-month-old baby was in a crib and was unharmed, authorities said.

Investigators said gunshots were fired prior to the discovery and weapons were found.

Pennsylvania State Police said they are searching for a suspect, but provided no further details.

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