Texas gunman had threatened school shootings on social media, reports say

The teenager had used the social media app Yubo to threaten school shootings and rape, as well as to show off a rifle he had bought, CNN reported on Saturday.

The victims included 19 children and two teachers shot dead and 17 others injured. He had earlier shot his grandmother and left her in critical condition.

Texas law enforcement officials have said Ramos asked his sister in September when he could buy a gun in Texas. In March this year, Ramos was chatting on Instagram about wanting to make the purchase.

Ramos legally purchased two military-style assault rifles from a federally licensed gun store earlier this month, one a day after his 18th birthday and one week before he entered Robb elementary school with one weapon, 58 magazines and 1,657 rounds of ammunition.

Kamala Harris on Saturday called for a ban on such assault weapons for the general public and urged the passing of legislation strengthening gun control that has long been stymied by Republicans in the US Senate.