Sunday night's shooting at a packed Austin bar left two people dead and 14 others injured.
Law enforcement sources identify Ndiaga Diagne, 53, as the alleged shooter in the incident.
Sources indicate the suspect arrived in the US on March 13, 2000 on a B-2 tourist visa.
He became a lawful permanent resident in June 2006 after marrying a US citizen.
What the Left Is Saying
Immigration advocates highlight Diagne's long-term residency status and legal path to permanent residence.
Some organizations argue the focus should remain on vetting processes rather than specific national origins.
What the Right Is Saying
Conservative commentators emphasize the alleged terrorism motive linked to US foreign policy.
Critics of current immigration policy point to the timeline of his visa status and permanent residency.
What the Numbers Show
The incident resulted in two fatalities and 14 injuries at the venue.
Diagne entered the US in 2000 and gained permanent resident status in 2006.
A Quran was reportedly found in the suspect's vehicle during the investigation.
The Bottom Line
Federal authorities are investigating potential terrorism links connected to US actions abroad.
Further details on the motive and background are expected as the FBI continues its probe.