Dyasha Smith, 21, choked to death on a muffin in her Cobble Hill school.
Nashaly Perez disappeared from Lillian L. Rashkis high school Monday, officials said.
The new "audible alarms bill" requires the city to examine schools to see where alarms are necessary.
The suit alleges negligence in the death of the teen, who went missing from his school in October.
The "audible alarms bill" is sponsored by central Brooklyn Councilman Robert Cornegy.
A new bill that would alarm elementary school exits is crucial with universal pre-K, its sponsor says.
The bill would add an alarm system to public school exits across the city.
Avonte Oquendo's family asked to look at the NYPD's investigation into the death of the autistic teen.
Testing on the missing autistic teen has been exhausted, officials say.
The DOJ said it would fund the devices after Sen. Schumer proposed "Avonte's Law" last week.
The devices would be voluntary and designed for parents of children who have a tendency to "bolt."
The city is looking into how 4-year-old Symeir Talley-Jasper was able to walk out of P.S. 59 unnoticed.
Relatives sobbed as they said goodbye to the 14-year-old.
A private memorial will be held Saturday, followed by a Mass at St. Joseph's Church in Greenwich Village.
Vanessa Fontaine is seeking access to NYPD documents surrounding her son's disappearance on Oct. 4.
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