The Texas Department of Public Safety's (DPS) regional director on Monday said that the man behind a recent mass shooting at a church there had "a domestic situation" with his family.
"One thing everybody wants to know is why something like this can happen," Freeman Martin said during a press conference in Sutherland Springs, Texas. "It's a senseless crime."
"But we can tell you there was a domestic situation going on inside the family," he added of suspected gunman Devin Kelley, 26. "This was not racially motivated. It wasn't over religious beliefs."
"It was a horrific event. We know he expressed anger towards his mother-in-law who attended this church. We can only speculate."
Martin also revealed that authorities have video footage from inside the First Baptist Church during Sunday's bloodshed but are not yet ready to publicly discuss it.
"I can tell you that there is video footage from inside the church that we have secured," he said. "And at this point we're not prepared to talk about the video."
Martin additionally noted that Kelley was dressed entirely in black during Sunday's attack and also wore a face mask replete with a white skull.
"He was obviously suspicious to others based on how he was dressed in all black," he said. "He was wearing a face mask with a white skull on it."
Here's a timeline of the deadliest US mass shootings in the last decade.
The Texas Department of Public Safety gives an update on the Sutherland Springs church shooting.
The Texas Department of Public Safety released Devin Patrick Kelley's driver license photo, identifying him as the "Sutherland Springs shooting suspect."
The man behind a recent mass shooting in Sutherland Springs, Texas, was discharged from the Air Force for allegedly assaulting his spouse and child.
Air Force spokeswoman Ann Stefanek on Sunday said that Devin Kelley served 12 months’ confinement after a 2012 court-martial.
Stefanek also noted that Kelley also ultimately received a bad conduct discharge and a reduction in rank.
Kelley was responsible for moving passengers, cargo and personal property in military transportation for the Air Force.
Stefanek added that he served in Logistics Readiness at Holloman Air Force Base in New Mexico from 2010 until his discharge in 2014.
Authorities on Sunday did not identify Kelley as the suspected gunman, instead revealing only that the individual was a white male in his 20s.
A U.S. official and a law enforcement official on Sunday, however, identified Kelley as the person who began firing at the First Baptist Church in Sutherland Springs earlier Sunday.
The shooting killed at least 26 people and wounded at least 20 others, making it the worst mass shooting in Texas history.
The U.S. official told The Associated Press that Kelley lived in a San Antonio suburb and that he does not appeared tied to any organized terrorist groups.
An address listed in online records as belonging to Kelley is located in New Braunfels, Texas, which is outside San Antonio and approximately 35 miles from Sutherland Springs.
Wilson County Sheriff Joe Tackitt told CBS that Kelley's former in-laws and ex-wife sometimes attended First Baptist Church but were not present during Sunday's violence.
Tackitt added that the in-laws visited the church later Sunday after hearing about the shooting there allegedly perpetrated by their relative, according to WFMZ.
The sheriff also told CBS News on Monday that Kelley crashed his car after getting pursued from the church and then shot himself before he was caught.
"At this time we believe that he had a self-inflicted gunshot wound," he said of Kelley.
NBC News on Monday reported that Tackitt said that 12 to 14 of the victims killed in Sunday's attack, the worst mass shooting inside a house of worship in U.S. history, were children.
The Texas Department of Public Safety’s regional director on Sunday said that the gunman arrived at a Valero gas station near the church around 11:20 a.m. local time that morning.
Freeman Martin said that Kelley was dressed in black, wearing a ballistic vest and tactical gear when left his vehicle and started firing a Ruger AR assault-type rifle at the church.
The suspect then entered the church and continued shooting, only to leave and encounter an unidentified area resident with a rifle who chased him.
Kelley was eventually found dead inside his vehicle near the border between Guadalupe and Wilson counties.
A law enforcement official on Monday told CNN that Kelley purchased the Ruger AR-556 rifle he allegedly used in the massacre in April 2016 at a store in San Antonio.
CNN's source added that there was nothing disqualifying in the background check conducted into Kelley as required for the purchase.
Texas Gov. Greg Abbott (R) on Monday said that Kelley at one point tried to get a license to carry a gun in Texas but was denied by the state, citing its Department of Public Safety.
"So how was it that he was able to get a gun?" he asked. "By all the facts that we seem to know, he was not supposed to have access to a gun. So how did this happen?"
The Associated Press contributed to this report.