The Pentagon is sending a group of medical experts to Fort Bragg in Fayetteville, North Carolina to determine if a link exists between four recent murders and the anti-malarial medication Lariam. Sgt. Rigoberto Nieves, Master Sgt. William Wright, Sgt. Cedric Griffin and Sgt. Brandon Floyd murdered their wives (Nieves and Floyd also shot and killed themselves) within a six-week span this summer, prompting army officials to launch an investigation of the homicides. Authorities immediately discovered that three of the four men might have been taking Lariam. Nieves, Wright and Floyd had recently returned from a tour of duty in Afghanistan, where Lariam is dispensed to soldiers because of the widespread incidence of malaria in the region. Lariam has been linked to severe paranoia and depression as well as to hallucinations and psychotic behavior. Made by the pharmaceutical company Hoffmann-La Roche, the anti-protozoal drug was cleared for use by the U.S. Food and Drug Administration in 1989.