It can also be located simply by exploration. Orden's terminal pegs the location down at the Mystic Pines, near the pond.
It's Master locked, requiring proper perks or filching Jacob's password paper from his home by the entrance (with Advanced locks). Search the cooler or the ground to find Deezer's lemonade. Trouble is, the obvious first step in the investigation turned out to be a dead end, thanks to the unhelpful nature of Covenant's residents. Understandably worried, he hired an investigator by the name of Honest Dan to figure out just what happened to her and his caravan.
Old Man Stockton of Bunker Hill has recently lost a caravan near Covenant, led by his daughter, Amelia. Human Error is a quest that can be obtained in the Commonwealth in Fallout 4.
