heat wave June 29, 2021 7:23 am Dealing With Dangerous Heat When a heat wave hits, many animal organizations remind people not to leave pets in the car, which quickly heats up to dangerous and even deadly temperatures. US & World Videos 2:50 Community mourns Billerica police sergeant killed on duty 4:32 Anti-war protester at Northeastern speaks amid arrests: ‘We are peaceful students' 10:42 Multiple people arrested as police clear campus encampments 1:40 Heavy police presence near on-campus protests 4:17 Police presence grows at pro-Palestinian encampment at Northeastern