18-year-old gunman Salvador Ramos was reportedly shot and killed at Robb Elementary in Texas by the unidentified policeman

The border patrol agent was reportedly working nearby the area when Ramos opened fire at the school in Uvalde, Texas. 

Before the officer stopped him, Ramos murdered 19 students and two teachers while wounding many others on Tuesday. 

Without waiting for backup the ‘hero’ policeman allegedly rushed to the scene when the shooting was reported. 

Police say the gunman barricaded himself inside a classroom shooting anyone that got in his way.

The officer was allegedly wounded during the confrontation but was able to leave the school without sustaining further harm. 

He was reportedly part of an elite tactical unit. 

Authorities say Ramos shot his grandmother then drove and crashed his vehicle in a ditch near the school before going on the rampage.

Tuesday’s massacre was America’s worst elementary school shooting since Sandy Hook in 2012.

VictimsFirst network has pledged to donate the Texas Elementary School Shooting Victims Fund directly to the victims’ families, “with no strings attached.”

Danaya Malenda contributed to this report.