️<unk>️<unk>️<unk>️  ️ Horrific: MIT police officer Sean Collier, 27, was found gurgling and covered in blood April 18, 2013 after prosecutors say he was shot in the head and neck by Dzhokhar Tsarnaev or his brother in a failed attempt to steal his gun.<unk>️ Horrific: MIT police officer Sean Collier, 27, was found gurgling and covered in blood April 18, 2013 after prosecutors say he was shot in the head and neck by Dzhokhar Tsarnaev or his brother in a failed attempt to steal his gun.<unk>️ Horrific: MIT police officer Sean Collier, 27, was found gurgling and covered in blood April 18, 2013 after prosecutors say he was shot in the head and neck by Dzhokhar Tsarnaev or his brother in a failed attempt to steal his gun.<unk>️ ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk> ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk> Meanwhile, the MIT police chief revealed his last words to the 27-year-old officer in a wrenching fifth day of testimony in the long awaited Boston bomber trial.<unk> Meanwhile, the MIT police chief revealed his last words to the 27-year-old officer in a wrenching fifth day of testimony in the long awaited Boston bomber trial. Chief John DiFava on Wednesday recalled chatting with Collier about an hour before his death.<unk> Chief John DiFava on Wednesday recalled chatting with Collier about an hour before his death.<unk> Chief John DiFava on Wednesday recalled chatting with Collier about an hour before his death.<unk> Chief John DiFava on Wednesday recalled chatting with Collier about an hour before his death. I told him to be safe, and I left<unk> DiFava said, adding it was the last time he saw Collier alive. 'I told him to be safe, and I left' DiFava said, adding it was the last time he saw Collier alive. <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> Collier had visible bullet wounds to his temple, neck and hand and was so covered in blood that Henniger struggled to pull him from his vehicle.<unk> Collier had visible bullet wounds to his temple, neck and hand and was so covered in blood that Henniger struggled to pull him from his vehicle.<unk> "I could hear gargling coming from his mouth", Henniger testified at U.S. District Court in Boston, where the jury hearing Tsarnaev's trial will also decide whether to sentence him to death if he is convicted of killing three people and injuring 264 with a pair of homemade bombs at the April 15, 2013, race. <unk> 'I could hear gargling coming from his mouth,' Henniger testified at U.S. District Court in Boston, where the jury hearing Tsarnaev's trial will also decide whether to sentence him to death if he is convicted of killing three people and injuring 264 with a pair of homemade bombs at the April 15, 2013, race. Jurors also saw surveillance footage of two figures approaching Collier's police cruiser on the MIT campus, spending about a minute at the car, and leaving. <unk> Jurors also saw surveillance footage of two figures approaching Collier's police cruiser on the MIT campus, spending about a minute at the car, and leaving. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ Collier's gun...
️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> Graduate student Nathan Harman, 24, said that he saw Dzhokhar near the scene. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️