Twenty-five-year-old Cesar Mazza was awaiting arraignment Wednesday on two counts of criminal homicide and a charge of kidnapping. Police say he took his 3-month-old son from foster care and dropped the baby off at his mother's house May 6.
Police say the baby had blood on him and Mazza claimed his ex, 19-year-old Tionna Banks, had tried to stab him.
In reality, police say, they later found Mazza had stabbed Banks 15 times and killed her grandmother Valorie Crumpton.
The police paperwork also shows Banks tried to get a restraining order against Mazza in December after she claimed he threatened to kill her and her family.
Staff members at Gwen's Girls, the women's shelter where Banks was staying, told police they heard Mazza threaten to kill her on several occasions.
They knew something was wrong when Banks did not return after receiving a weekend pass.
The bodies of Valorie and Tionna were found May 7. Mazza was taken into custody in New Jersey.
Court records don't list an attorney for Mazza.
Mazza was brought back to Pittsburgh earlier this week, after fighting extradition from New Jersey following his arrest in a separate case involving Banks.
He was arrested in May near his hometown, after being accused of missing a trial on charges he assaulted Banks when she was pregnant.
In that case, Mazza was accused of punching Banks, knocking her to the ground and repeatedly stomping on her when she was five months pregnant last November.
Police said the dispute arose after Banks refused to name the baby after him.
Police say, they found Mazza had stabbed Banks 15 times and killed her grandmother too
After Ms. Banks’ and Ms. Crumpton’s bodies were found, police learned that Mr. Mazza had skipped his trial that had been scheduled on the assault case. Bench warrants were issued for him and he was finally brought back to Pittsbugh