Electronic surveillance used to build case against stepson in man's killing

BATON ROUGE - An arrest warrant filed into court records Monday sheds new light on the roles electronic surveillance and crime scene processing played in investigating the death of Walter "Keith" Rowland, allegedly at the hands of his stepson Ian Seghers.Rowland, 66, was reported missing March 9 after he missed a weekly visit with his sister. His body has not been found.The warrant, charging 34-year-old Seghers with first-degree murder, was signed April 4, but was placed into court records Mond