Investigators in Mexico say they are now certain that 43 college students missing since September were killed and incinerated after they were seized by police in southern Guerrero state.<br /><br />The attorney general on Tuesday cited confessions and forensic evidence from an area near a garbage dump where the September 26 crime occurred that showed the fuel and temperature of the fire were sufficient to turn 43 bodies into ashes.<br /><br />Al Jazeera's Adam Raney reports from Mexico City.<br /><br />Subscribe to our channel http://bit.ly/AJSubscribe<br />Follow us on Twitter https://twitter.com/AJEnglish<br />Find us on Facebook https://www.facebook.com/aljazeera<br />Check our website http://www.aljazeera.com/