People hold candles alongside wooden crosses at Freedom-Corner in Uhuru Park in Nairobi on April 7, 2015 during a candlelight vigil for the victims of an attack claimed by Somalia's Al-Qaeda-linked Shebab insurgents on a university campus in Kenya's nothern town of Garissa, in which 148 people were killed. Hundreds of Kenyans took to the streets on April 7 demanding greater security following last week's massacre by Somalia's Shebab Islamists, on the final day of mourning for the 148 people killed by the militants. AFP PHOTO / TONY KARUMBATONY KARUMBA/AFP/Getty Images
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Vigil held to remember Garissa massacre victims
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People hold candles alongside wooden crosses at Freedom-Corner in Uhuru Park in Nairobi on April 7, 2015 during a candlelight vigil for the victims of an attack claimed by Somalia's Al-Qaeda-linked Shebab insurgents on a university campus in Kenya's nothern town of Garissa, in which 148 people were killed. Hundreds of Kenyans took to the streets on April 7 demanding greater security following last week's massacre by Somalia's Shebab Islamists, on the final day of mourning for the 148 people killed by the militants. AFP PHOTO / TONY KARUMBATONY KARUMBA/AFP/Getty Images
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A survivor of an attack by islamist gunmen claimed by al-Shabab on a university campus in Garissa, northern Kenya is comforted by a colleague after arriving in Nairobi on April 4, 2015.
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Story highlights

Kenyans gather in Nairobi to remember victims of a terrorist attack that stunned a nation

The attack at a Garissa university last week killed 147 people, mostly students

Nairobi, Kenya CNN  — 

Days after a horrific Al-Shabaab attack on its soil, Kenya launched airstrikes targeting the terror group in Somalia, according to a military source, who insisted the strikes were not retribution for last week’s massacre at Garissa University College that killed nearly 150 people.

They were students and dreamers, pursuing their ambition for a better life.

Kenyans mourned the victims of the attack Tuesday night at Nairobi’s Uhuru Park, where hundreds gathered.