The Latest: Teachers return to work at school shooting site

A young woman cries, Tuesday, May 22, 2018, by a memorial for Santa Fe High School freshman Aaron Kyle McLeod who was killed Friday during a shooting at the school, in Santa Fe, Texas. (Marie D. De Jesus/Houston Chronicle via AP)
People offer funeral prayer of Sabika Sheikh, Pakistani exchange student killed in a mass shooting at a high school in Texas, in Karachi, Pakistan, Wednesday, May 23, 2018. Her body has arrived in the port city of Karachi, where her family lived and where she is being buried. (AP Photo/Fareed Khan)
Gov. Gregg Abbott hosts a roundtable discussion about safety in Texas schools after the recent school shooting in Sante Fe at the Texas states Capitol on Tuesday, May 22, 2018, in Austin, Texas. Abbott convened the first in a series of discussions on school safety Tuesday. (Ana Ramirez/Austin American-Statesman via AP)
A woman gestures toward a cross honoring Santa Fe High School substitute teacher Cynthia Tisdale Tuesday, May 22, 2018, who was killed during a shooting at the school on Friday, in Santa Fe, Texas. (Marie D. De Jesus/Houston Chronicle via AP)
Gov. Gregg Abbott hosts a roundtable discussion about safety in Texas schools after the recent school shooting in Sante Fe at the Texas state Capitol on May 22, 2018, in Austin, Texas. Abbott convened the first in a series of discussions on school safety Tuesday. (Ana Ramirez/Austin American-Statesman via AP)
Gov. Gregg Abbott hosts a roundtable discussion about safety in Texas schools after the recent school shooting in Sante Fe at the Texas States Capitol on May 22, 2018, in Austin, Texas. Abbott convened the first in a series of discussions on school safety Tuesday. (Ana Ramirez/Austin American-Statesman via AP)
Abdul Aziz Sheikh, father of Sabika Sheikh, the Pakistani exchange student killed in a mass shooting at a high school in Texas, comforts Sabika's friends outside his home prior to her funeral prayer in Karachi, Pakistan, Wednesday, May 23, 2018. Her body has arrived in the port city of Karachi, where her family lived and where she will be buried. (AP Photo/Fareed Khan)

The Latest: Teachers return to work at school shooting site

A young woman cries, Tuesday, May 22, 2018, by a memorial for Santa Fe High School freshman Aaron Kyle McLeod who was killed Friday during a shooting at the school, in Santa Fe, Texas. (Marie D. De Jesus/Houston Chronicle via AP)
People offer funeral prayer of Sabika Sheikh, Pakistani exchange student killed in a mass shooting at a high school in Texas, in Karachi, Pakistan, Wednesday, May 23, 2018. Her body has arrived in the port city of Karachi, where her family lived and where she is being buried. (AP Photo/Fareed Khan)
Gov. Gregg Abbott hosts a roundtable discussion about safety in Texas schools after the recent school shooting in Sante Fe at the Texas states Capitol on Tuesday, May 22, 2018, in Austin, Texas. Abbott convened the first in a series of discussions on school safety Tuesday. (Ana Ramirez/Austin American-Statesman via AP)
A woman gestures toward a cross honoring Santa Fe High School substitute teacher Cynthia Tisdale Tuesday, May 22, 2018, who was killed during a shooting at the school on Friday, in Santa Fe, Texas. (Marie D. De Jesus/Houston Chronicle via AP)
Gov. Gregg Abbott hosts a roundtable discussion about safety in Texas schools after the recent school shooting in Sante Fe at the Texas state Capitol on May 22, 2018, in Austin, Texas. Abbott convened the first in a series of discussions on school safety Tuesday. (Ana Ramirez/Austin American-Statesman via AP)
Gov. Gregg Abbott hosts a roundtable discussion about safety in Texas schools after the recent school shooting in Sante Fe at the Texas States Capitol on May 22, 2018, in Austin, Texas. Abbott convened the first in a series of discussions on school safety Tuesday. (Ana Ramirez/Austin American-Statesman via AP)
Abdul Aziz Sheikh, father of Sabika Sheikh, the Pakistani exchange student killed in a mass shooting at a high school in Texas, comforts Sabika's friends outside his home prior to her funeral prayer in Karachi, Pakistan, Wednesday, May 23, 2018. Her body has arrived in the port city of Karachi, where her family lived and where she will be buried. (AP Photo/Fareed Khan)