This is A-P News Minute.(ap entertainment)COUNTRY MUSIC IS MOURNING THE DEATH OF MINDY MCCREADY, WHO AUTHORITIES BELIEVE COMMITTED SUICIDE AT HER HOME SUNDAY IN HEBER SPRINGS, ARK. THE 37-YEAR-OLD SUFFERED A SINGLE GUNSHOT TO THE HEAD. (AP, ENCA)OLYMPIC RUNNER OSCAR PISTORIUS' AGENT HAS CANCELED THE DOUBLE-AMPUTEE'S FUTURE TRACK RACES, DAYS AFTER GIRLFRIEND AND MODEL REEVA STEENKAMP DIED OF GUNSHOT WOUNDS SUFFERED IN PISTORIUS' HOME EARLY VALENTINE'S DAY. PISTORIUS IS BEING HELD AT A POLICE STATION IN PRETORIA.VENEZUELAN PRESIDENT HUGO CHAVEZ SAYS HE HAS RETURNED HOME TO VENEZUELA AFTER MORE THAN TWO MONTHS OF MEDICAL TREATMENT IN CUBA FOLLOWING CANCER SURGERY. CHAVEZ SAYS "WE WILL CONTINUE OUR TREATMENT HERE."A NEW STUDY SUGGESTS THAT CHANGING THE CHANNEL FROM VIOLENT TV SHOWS TO EDUCATION TV CAN IMPROVE THE BEHAVIOR OF PRESCHOOLERS. THE STUDY'S LEAD AUTHOR DR. DIMITRI CHRISTAKIS SAYS RESEARCH SHOWS THAT "WHAT CHILDREN WATCH IS AS IMPORTANT AS HOW MUCH THEY WATCH."___ ___, The Associated Press with AP News Minute. (****END****)