No bail reduction for Gregory Showalter.  The 61-year-old Ottumwa man is accused of murdering his wife last month.  On Monday (8/16), Showalter appeared in Wapello County Court to have his $250,000 bond reduced.  On Tuesday (8/17), Judge Myron Gookin said no to that request.  Gregory Showalter is accused of first degree murder in the death of 60-year-old Helen Showalter.  Her body was found in the Des Moines River two weeks ago.