The prosecution requested more time to prepare its response to a defense motion to suppress the statements Aguilar gave to investigators about how Guillen was killed. Gainor said Aguilar never received her Miranda rights.
Judge Jeffrey Manske granted the motion and gave the prosecution until May 5 to respond.
In a separate court, Judge Alan Albright denied a defense motion on Monday for more access to the prosecution's case.
Public Defender Lewis Gainor was seeking what's called a bill of particulars, according to the document.
A bill of particulars is a "formal, detailed statement of the claims or charges brought by a plaintiff or a prosecutor, usually filed in response to the defendant’s request for a more specific complaint,” the motion reads. “The purposes of a bill of particulars are to obviate surprise at trial, enable the defendant to prepare his defense with full knowledge of the charges against him, and to enable double jeopardy to be pled in case of a subsequent prosecution.”
According to the motion, the defense must request the bill of particulars within 14 days of the indictment. Aguilar was indicted July 14, 2020. Gainor did not request the bill of particulars until Dec. 22.
Gainor argues the indictment was so vague it failed to provide specific acts of which Aguilar is accused.
Aguilar was indicted on charges of tampering with documents or proceedings and conspiracy to tamper with documents or proceedings for her alleged role in the death and disappearance of Guillen on April 22, 2020.
According to a criminal complaint, Aguilar told investigators she helped Spc. Aaron Robinson dismember and bury Guillen's remains in a rural area near the Leon River in Bell County.
"A review of the indictment in this case shows no obvious improprieties, or as defendant suggests without specific explanation, risk of double jeopardy," Albright said in his ruling. "The defendant has never complained at any time during the pendency of this case that the government has failed to provide all required discovery."
Albright said the motion amounted to Gainor requesting the prosecution "identify exactly what evidence it intends to introduce to prove the various elements of the charged offenses."
Albright said the request for a bill of particulars had no valid basis and he denied the motion.