READING, Pa. -

A man accused of killing his infant son is heading to trial.

Charges against Eugene Jimenez were held for court during his preliminary hearing in Reading on Tuesday.

Jimenez's 20-week-old son, Ayden, died in 2009 after he stopped breathing and was rushed to the hospital, officials said.

An autopsy revealed Ayden suffered brain injuries, three fractured ribs, a left wrist fracture, and a fracture of his right shin area, according to court documents, which detail a series of injuries the boy suffered in the weeks before his death.

Jimenez is facing first and third degree murder charges. He remains behind bars in the Berks County Jail.