But District Attorney Michael Sheppard, contacted by phone Monday, said the case remains open.
“It is an active investigation,” Sheppard said.
Refugio County Sheriff Robert Bolcik said more witnesses were being lined up for the case.
“We are still taking witnesses... a couple of witnesses for the grand jury,” Bolcik said.
Lopez was found dead behind his house in the 100 block of Borden Road in the early morning hours of June 28. He apparently was shot multiple times with a .22 caliber weapon.
Refugio County deputies with the assistance of the U.S. Marshals Service, Department of Justice, Southern District Unit, arrested Michael Anthony Rocha, 35, on Sept. 27, after a three-month investigation.
The suspect in the Lopez shooting was found at a residence in Aransas Pass.
Rocha remains in the Refugio County Jail with bond set at $750,000.
The case remains under further investigation.
The Refugio County grand jury was scheduled to meet Monday, April 7, but it was not known if the Lopez case would be reviewed by the grand jury.