(CNN) -- The medical examiner has ruled that the death of Daniel Kerrigan, the father of skater Nancy Kerrigan, was a homicide, the Middlesex, Massachusetts, district attorney's office said Tuesday.
The Kerrigan family said in a statement that it was "extemely disappointed" in the medical examiner's "premature and inaccurate" ruling. The statement, issued by family attorney Tracy Miner, pointed out that Daniel Kerrigan suffered from a pre-existing heart condition.
Kerrigan's brother is behind bars, accused of assault and battery against 70-year old Daniel Kerrigan.
Daniel Kerrigan died last month after being taken by emergency personnel from his family home in Stoneham, Massachusetts, to a hospital. His son, Mark, has pleaded not guilty to charges stemming from an alleged assault.
Where was Tanya Harding on the night of the alleged assault?