LINCOLN PARK, Mich. -- A 21-year-old Lincoln Park father was arraigned Monday on charges that he sexually assaulted and murdered his 8-day-old daughter.

During the hearing, Christopher Richardson vehemently denied that he committed the acts, repeating, "I didn't do this" to the judge and his family.

He asked the judge if he could "give blood or something to prove that I didn't do this, man."

Earlier Monday, Wayne County Prosecutor Kym Worthy held a news conference to give details on what Richardson is accused of doing to his infant daughter, Neveah Richardson.

Richardson had been charged with domestic violence in the beating of his wife. Added to that charge Monday afternoon was murder, sexual assault and criminal sexual conduct against his baby.

Neveah had died as a result of an anal intrusion that caused "massive internal bleeding and sepsis" (infected blood), Worthy said in the news conference.

At his arraignment, Richardson continuously denied he was responsible, calling it "psychotic, sick ..."

Police said Neveah's mother told them that she woke up with her daughter on her chest and found her bleeding from the face and mouth.

When Richardson was brought to the hospital, health officials said she was bleeding from the nose, mouth and rectum.

Lincoln Park Police Chief Thomas Karnes said during a news conference last week that the father beat the baby's mother on the way to the hospital. The grandparents, too, were in the car, he said.