A Galveston man on probation after pleading guilty May 31 to a felony gun charge was charged again Sunday with multiple felonies that prosecutors should have known about before the plea deal was struck, officials said.

Galveston County District Attorney Jack Roady on Monday said his office should have known about felony warrants for Dymonique Thompson, 18, before his office agreed to a deferred probation deal on a deadly conduct charge from February.

Thompson pleaded guilty May 31 to firing a gun at a group of high school students in an alley near Ball High School on Feb. 14. No one was injured in the shooting, but it prompted a manhunt in neighborhoods around the school and caused high anxiety because it happened on the same day as a mass shooting at a high school in Parkland, Fla.

Thompson was arrested again Sunday, just nine days after agreeing to the plea deal, according to police records.

He and another man were charged with felony theft of a firearm after a League City police officer reported finding two stolen handguns during a traffic stop on South Kansas Avenue just after midnight, according to a probable cause affidavit.

After that arrest, police charged Thompson on two outstanding warrants — one for an aggravated assault with a deadly weapon charge in La Marque and one for a burglary charge in Galveston, according to court records.

In the La Marque case, Thompson is accused of shooting at two men at a basketball court in Carbide Park on May 6, and then firing at the house where the men lived on May 7, according to the warrant. La Marque police obtained a warrant for his arrest in that case on May 23.

In Galveston, Thompson was accused of being one of four people who broke into a house in the 2900 block of Avenue O 1/2 on May 11, according to police records. Police obtained a warrant from the DA’s office on May 28, after reporting a security camera had recorded Thompson entering the house.

Derrick Phillips, 17, of Galveston, also was charged with felony burglary and aggravated assault with a deadly weapon in connection with the same crimes, according to court documents.

Despite the two warrants, Thompson walked out of the Galveston County Courthouse on May 31 with a sentence of four years deferred probation.

That appears to have been a mistake, Roady said.

Prosecutors check for warrants before they complete plea agreements, he said. But when they checked their computer system for warrants in late May, the documents had not been uploaded, Roady said.

Prosecutors also must approve the warrants in the first place, he said.

“The arrest warrants were signed but for some reason never got entered into the system,” he said.

He could not explain why they weren’t in the system at the time.

“We’re going to figure out why the warrants didn’t show up,” he said.

Had the prosecutor negotiating the plea agreement known about the warrants, Thompson likely wouldn’t have gotten the same deal, he said.

“Certainly, if the prosecutor on the first case had known, there would have probably been a difference,” Roady said.

Thompson was in custody Monday at the Galveston County Jail on $140,000 bond, according to jail records.

Phillips was held on $100,000 bond, according to jail records.

John Wayne Ferguson: 409-683-5226; john.ferguson@galvnews.com or on Twitter @johnwferguson.

(6) comments

Jim Casey

Their mothers must be so proud. At an age where some kids have barely made Eagle Scout, they are headed for hard time.

- Jim

Rusty Schroeder

These 2 probably never heard of Eagle Scout or BSA for that matter. It's probably just a normal occurrence to their mothers, maybe not, but probably is more likely.

George Croix

This article was supposed to be about 2 men.

From the story content there was no evidence of any men at all....

Rusty Schroeder

Probably not in their life either..... It truly is a shame, did they play sports in school? How were they not spared the hood mentality they learned? Lots of questions, to bad for them they will seek answers while serving time. Or maybe not with the reason for this story in the first place, not much faith in the DA's office these days. And Roady won re-election, hope he fixes the problems these next 4 years.

Kurt Sistrunk

So...that's shots fired at kids around Ball High in February, shots fired at two kids playing basketball in La Marque in May, shots fired in the direction of a home in La Marque in May, and a burglary, and "if the prosecutor had known, there would have PROBABLY been a difference", something other than deferred as the outcome?

Chris Gimenez

Nothing to see here folks. This is classic"I do the right things for the right reasons" Jack Roady. He doesn't know how this happened but by golly he's going to find out why his staff did this and he's going to fix it. Same thing he said when his staff withheld evidence of innocence in the Joshua Bledsoe case and tried to send an innocent man to prison. Same thing he said when he appointed Finnegan as a special prosecutor for the felony cocaine case of Jennifer Kinard-the daughter of Galveston County District Clerk John Kinard-and which was subsequently dismissed by Finnegan without going to trial. So former Galveston County cowardly journalist Heber Taylor writes an article dissing the handling of this case in August 2013 but then turns around and endorses Roady for re-election in February 2014. Never mind that Finnegan had had numerous license suspension by the Bar Association and he was Roady's go-to prosecutor for "special" cases. So once again-and no one knows how many other problems like this have occurred-Roady is "going to fix the problem". In order to fix the problem Jack, you'd have to be removed from the office. These things happen because the top guy-Jack Roady-is either not leading his office or worse, his staff understands exactly the way Roady wants to run his office. Of course it helps to have the GCBN actively misleading the public and/or covering up Roady's misconduct. Does everyone remember when the GCBN printed the story about Roady secretly dismissing the felony child abuse charge against former TCPD Officer John Thorn? Of course you don't because the GCBN conveniently withheld that from public view right before Heber Taylor and his cohorts endorsed Roady for re-election. How about the outrage by this paper regarding the county jail overcrowding and the ACLU lawsuit? Apparently they weren't astute enough to connect the fact that Roady's office has a 47% dismissal rate for misdemeanor cases-many of which the defendants are in jail until they're dismissed because they can't make bail. Mr. Schroeder, forget about Roady fixing these problems while he's in office. He's a lifer politician now because he understands he can keep saying "he's going to fix things" and he'll keep getting re-elected.

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