A man and a wife saw what happened and the man ran with the baby’s mother to help her pick the child up from the ground, police said. CBS Chicago
I presume this was the level of detail in the police report, so the journalist is just echoing what’s in the report. But “husband and wife” or “man and woman” would be more parallel. Given the context of this particular story, “two people” would also be fine.
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This is what the techbros are excited about? Really?