Over the course of about three months in 1946, a masked killer stalked young couples on lovers' lanes attacking 8 people and killing 5. No one was ever caught and convicted. There are many theories on who the killer might have been, none were ever proven.
Sources:
vault.fbi.gov/texarkana-phantom-moonlight-murders-part-01-of-02/view-02-of-02/view
morbidnmacabre.com/2020/08/28/the-texarkana-moonlight-murders/
www.texasmonthly.com/the-culture/texarkana-murder-mystery/
the-line-up.com/texarkana-murders
morbidology.com/the-texarkana-moonlight-murders/
www.nydailynews.com/news/crime/texas-murder-spree-hands-phantom-killer-solved-article-1.2554028#
www.texarkanagazette.com/news/texarkana/story/2016/mar/24/its-been-70-years-of-terror-stalked-texarkana-form-phantom/419177/
www.aymag.com/texarkana-famous-phantom-killer-part-1
www.aymag.com/texarkana-famous-phantom-killer-part-2