The family of a 17-year-old was killed Sunday while speaking out against gun violence, after three other teenagers were killed Tuesday

HOUSTON – Three teenagers die in a triple murder in Alief.

As Houston police search for their killer, Harris County sheriff's deputies are searching for a gunman who killed a 17-year-old in northwest Harris County. FOX 26 spoke with this teen's family.

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The news that three more teenagers were shot in the Houston area is heartbreaking for this family, who just lost their 17-year-old to gun violence on Sunday.

“It's senseless and it's gotten to the point where children are no longer burying their parents, parents are burying their children, and that shouldn't be the case at all,” said Melissa, the mother of 17-year-old Aldolphus “AJ” McKenzie Gilbert.

“There are three kids dead over there. My grandson died and I'm just feeling bad. Now that we have a new president, maybe we can pass a new law, Adolphus' “law to keep guns off the streets,” adds AJ's grandmother, Joyce Gilbert.

The 17-year-old was shot and killed Sunday in his own neighborhood at the Evolve Champions Apartments on TC Jester. Two days later, across town in the Alief area, investigators said two teenagers were in the laundry room at the Tierra Del Sol Apartments on Cook Road when three other teenagers came in and an argument between the two groups led to a shooting .

“Very tragic event here. We have family here. We have young lives that have been lost. Please keep the families in your thoughts and prayers,” said Asst. Chief Alvaro Guzman of the Houston Police Department.

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The two teenagers who were originally in the laundry room were killed inside. A third teenager, who had been with two other boys, was found shot outside the laundry room and pronounced dead at the hospital.

17-year-old Jonathan Hernandez is one of the teenagers killed in the triple murder. His loved ones say they are heartbroken.

Meanwhile, relatives of McKenzie say they are praying for those families as well as their own.

“We were out of town and what's sad about it is I was looking for 17 year olds that were killed in Houston and you would be surprised how many 17 year olds that were shot that I had to run into before I had our baby.” “It hurt my heart,” said McKenzie's aunt, Bridjett Osborne.

“This is my baby. This is my 17 year old son and he will never come through that door again or ever say a word to me again. He was funny. He was talented. He had everything a parent could ask for. “To those who did, I want to say it's just not worth facing,” says AJ's mother.

“Children kill children every day, all day long, and it hurts me. They don't understand the pain we're going through. My heart goes out to the family of the children who killed my grandson. They're going to die.” “It's sad when it comes to gun violence,” says AJ's grieving grandmother.

The family held a balloon release and prayer vigil in AJ's memory. They say they want justice in their case and for the families of the three teenagers shot in the triple murder in Alief.

So far, no one has been arrested or charged in either case.