FINALLY. Details.
http://www.sccgov.org/sites/da/newsroom ... ence-.aspx
"The incident happened in the early morning of August 31 during a birthday party McDonald threw for himself at his San Jose home. An investigation determined that, during an argument, Jane Doe struck McDonald, who then tried to physically restrain her. The two scuffled. McDonald then forcibly attempted to remove her from the home. At 2:39 a.m. McDonald called a San Jose police officer, saying he needed to get “a female” out of his house. Two minutes later, Jane Doe called 911, resulting in McDonald’s arrest.
The legal and factual analysis by the District Attorney's Office, fully described in a public memo included with this release, determined the incident consisted of a physical struggle between two parties, each party blaming the other, no verifiable eyewitness accounts, and no one left with significant injuries. The only prior police-involved incident between the couple was an unsubstantiated report in May that Jane Doe fired a weapon into the ground during an argument with McDonald."
EDIT:
"Conflicting versions of the incident, a lack of verifiable eyewitnesses, and a significant lack of cooperation by Jane Doe, left investigators uncertain exactly what happened. Left with insufficient evidence, it is not permissible - by policy or law - to charge a crime."