A lady ran over a high school kid who was sleeping on the ground in a parking lot because she couldn't see him there.
この場合、次のような言い方ができますよ。
ーA lady ran over a high school kid who was sleeping on the ground in a parking lot because she couldn't see him there.
「女性が駐車場の地面の上で寝ている高校生に気が付かずひいてしまった」
to run over someone で「車で人を轢く」
ご参考まで!