Sandra Anderson successfully petitioned the court to have the body of her 19-year-old son, Robbie, exhumed last Friday and allow an independent medical examiner to conduct an autopsy over the weekend to learn what really happened on the night of Dec. 4, 2009.
Robbie Anderson died after drinking with two fellow graduates of Maple Grove High School. He had gone to a friend's house solely to play video games and watch movies, but started drinking with them later in the evening, his mother said.
The Hennepin County Medical Examiner's office described what happened to Robbie as "sudden unexplained death."

His mother didn't buy that explanation. She believes evidence suggests something more sinister.
"His face and body were beaten," Sandra Anderson said, recalling her arrival at the hospital that night. "Bruises and blood all over his face. It was so horrific, unfathomable. That image will always unfortunately be ingrained in my memory."
A Maple Grove police report included in a court affidavit showed officers went to the residence where the young men had been drinking after getting a 911 call. Officers arrived to find Anderson not breathing, with no pulse and what appeared to be two black eyes and bruising down the sides of his nose. Officers started CPR and used a defibrillator on Anderson before he was taken to what's now North Memorial Health in Robbinsdale, where he was pronounced dead.
Sandra Anderson said she never got much of an explanation from Robbie's friends about what happened that night. From police, she said, she got "bits and pieces" — that her son passed out and his friends claimed they try to help him. Neither of the two other men present were arrested or charged in Anderson's death.
"The pain is indescribable; my life has been torture without him," Sandra Anderson said. "I have nightmares of him and constantly wonder what his last moments on this earth were like. How afraid he must've been."