Police say the cargo van ran over the 69-year-old woman and then slammed into her home.
Authorities say two people, a man and a woman, were taken into custody. It is unclear if drugs or alcohol were involved.
Police say the female suspect, 19, was driving the van and has been arrested, though the charges and her identity are unknown. The man is still being questioned.
Witnesses say the woman tried to walk away from the scene, but that the man held her there. The two were also seen arguing after the crash.
The house is no longer structurally sound, and a large portion collapsed as the van was removed.
The investigation continues as the community tries to come to terms with this sudden tragedy.