A Marine veteran known for an embarrassing wartime controversy is being credited with helping police in Tennessee stop his fiancée’s alleged plan to hire a hit man to kill her ex-boyfriend.

Joseph Chamblin, a former scout sniper whose military career came to an end after a video surfaced showing him and other Marines urinating on enemy corpses, tipped off law enforcement in Kingston, Tenn., that his fiancée, Laura Ann Buckingham, had allegedly repeatedly asked for his help in making her ex “go away,” according to theKnoxville News Sentinel.

Reached by phone Friday, Chamblin declined to comment on the ongoing investigation but told Marine Corps Times that he and Buckingham had been together since April and were engaged.

Buckingham was arrested Wednesday evening on a warrant for criminal attempt to commit first degree-murder of her former boyfriend, Bradley Sutherland, according a joint press release put out by the Roane County Sheriff’s Office and the 9th District Attorney General’s Office.

Buckingham allegedly paid an undercover agent with the Tennessee Bureau of Investigation to kill Sutherland, who lives in New Albany, Ind., the Sentinel reported. The two have a 3-year-old son together, according to the Sheriff’s Office release.

Read more at USA Today