By Howard Monroe

PHILADELPHIA (CBS) — A community gathered Monday night to remember the life of a 12-year-old boy who was murdered in Frankford. Friends, family and community leaders are mourning the death of Sadeek Clark-Harrison.

The 12-year-old was shot and killed while answering the front door in Philadelphia’s Frankford neighborhood Sunday morning.

District Attorney Larry Kranser attended the vigil.

“It’s hard to even fathom. It is unsurmountable and it’s not just the family. The family is devastated but it’s this whole community,” Krasner said.

The family originally planned to march to City Hall on Monday morning but now say they will wait until after the funeral. They say they’re going to demand police and city officials find whoever killed their son.

“My son was great. He was strong. He was going to make something out here,” Sadeek’s mother, Lisa Clark, said.

A grieving mother is now trying to come to terms with the fact that her 12-year-old son was shot and killed in his own home.

The shooting happened Sunday just before 3 a.m. Police say he was in his house when someone came to the front door on the 5000 block of Ditman Street. The family says whoever was outside was screaming his name and when he came to the door, he was shot through the window. He was hit once in the head.

Medics performed CPR but he couldn’t be revived.

The boy was home with his grandmother and 10-year-old sister at the time of the shooting. His family remembered Sadeek as an athlete who was involved in his church and would help anyone who needed it.

“They dimmed the light when they took my son away from me,” Clark said. “Y’all dimmed my light. I have five children – four sons and one daughter. That was my baby son. He was great. He looked up to his big brothers. He saw what they did so he knew what not to do.”

To make sure Sadeek’s death was not in vain, family members say they will demand elected officials do more to clean up their neighborhoods and to protect their kids.

“Our kids are not making it. It’s got to stop. Y’all are supposed to help us. Y’all bring the military for the protesters, bring them here,” Sadeek’s aunt, Alycia Johnson, said.

No one has been arrested. Police say what’s making their search so difficult is that the shooter shot through the door and they don’t have a description to go off of.

If you have any information on this incident, call police.

For a list of gun violence resources in Philadelphia, click here.

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