A second suspect has been detained regarding the tragic murder of a young girl who was shot inside her Texas home when masked attackers unleashed a barrage of bullets at her family during a daytime assault.

Maryann Marble, four, was at her San Antonio-area residence with her parents and older siblings on May 8, 2024, around 7:30 PM when two gunmen arrived in a stolen gray Infiniti Q50 and began firing with high-powered rifles.

Disturbing surveillance video recorded the instance when two men sprinted down a residential street with their rifles ready, moments before authorities reported they released 20 to 25 gunshots into the home.

‘The front door had so many bullet holes that it looked like Swiss cheese,’ Bexar County Sheriff Javier Salazar told Fox San Antonio at the time. 

Maryann was struck in the head and was pronounced dead at the scene, while her parents, ages 25 and 27, and her two siblings, ages seven and eight, were critically injured.

‘This is a case we’ll never forget,’ the sheriff said Friday, as he announced the charges against 20-year-old Bryan Salazar. 

‘Five members of a family were all shot and Maryann unfortunately lost her life almost instantly after being shot in the head.’

Deputies have been working diligently ever since to find the perpetrators, the sheriff said, and the first arrest came in October 2024, when investigators charged 19-year-old Isaiah Perales in connection with the shooting.

Perales had been booked in jail on separate auto crimes, but arrest records obtained by KENS 5 show investigators reviewed phone calls involving inmates who referred to Perales and Salazar by their nicknames (‘Zay’ and ‘Trapz,’ respectively).

In these calls, the inmates allegedly discussed who the intended target was in the shooting that led to Maryann’s death.

One person allegedly said at the time it was ‘whoever killed Trapz’s older brother,’ according to the arrest records.

Police now believe Perales and Salazar were seeking retaliation for the shooting death of 20-year-old Xavier Perez – a relative of Salazar’s – two weeks prior.

Investigators say the pair stole the Infiniti Q50 used in the drive by within days of Perez’s murder and began planning out their attack, though it remains unclear what role Marble’s family may have had in Perez’s murder.

‘This was a calculated act,’ Sheriff Salazar said. ‘They stole the car, they conducted surveillance and then carried out the shooting.’

Digital evidence ultimately gave police reason to believe that in the hours after the shooting, the suspects may have discarded evidence at Calaveras Lake, where dive teams recovered a Draco-style AK-47 days after Perales’ arrest.

Ballistics testing later confirmed the rifle was the same one used in the attack. 

In the months since, the sheriff’s office said it received a number of tips and reviewed cell phone data that eventually led deputies to Salazar.

According to the sheriff, surveillance footage showed both Salazar and Perales scoping out the family home in the days before the shooting.

Cell tower records also showed that both suspect’s phones were near the scene of the shooting that night, turned off briefly during the barrage of gunfire and later pinged again near Calaveras Lake – where the rifle was found.

Salazar is now facing eight counts of aggravated assault-mass shooting, two counts of injury to a child in relation to Maryann’s siblings injuries and one capital murder charge.

The Bexar County Sheriff’s Office also noted that the suspect was previously arrested and charged with tampering with evidence back when Perales was first taken into custody.

He is also facing drug and firearms offenses.

Following the arrest on Friday, Maryann’s mother took to Facebook to celebrate.

‘They got him baby girl!!!!!! They got him!!!!!!!’ she wrote, sharing a photo of her young daughter. ‘I knew this day would come I just didn’t know when but it’s here!!!!!!’

‘Today’s an amazing day!!!! My angel is going to get her justice soon!!!!’ 

The grieving mother then went on to call Salazar a ‘pos’ and said she hopes he and Perales ‘rot a slow death in hell.’ 

But as Salazar was perp walked on Friday, the suspect maintained his innocence.

‘Bro, I’m as innocent as can be, bruh,’ he told reporters, according to KSAT. ‘Hopefully they catch the right people ’cause it ain’t me.’

Sheriff Salazar, though, denied that his team took the wrong guy into custody. 

‘This case is almost 400 pages of just evidence after evidence,’ the sheriff said of the case against Salazar. ‘My investigators did an awesome job of piecing it all together.’

He noted that Salazar was ‘not a very cooperative young man’ in the investigation.

‘If we have things our way, he’s going to spend the rest of his life behind bars, at the very least,’ the sheriff said. 

Yet the investigation into the shooting is still ongoing, as a third man, Ashton Garcia, remains a person of interest in the case and the sheriff’s office continues to seek tips from the public.

‘This is a big case,’ Sheriff Salazar explained. ‘My investigators have done an outstanding job following leads, but there’s always more information out there.

‘If anybody knows something, we’re asking them to come forward.’