DENVER (KDVR) — Detectives in the Mile High City continue to build a case against triple homicide suspect Elijah Hood.

Meanwhile, FOX31’s partners at Metro Denver Crime Stoppers are revealing how multiple anonymous tips led to Hood’s arrest.

As news spread that a young man, grandmother and 4-year-old boy were shot to death, the boy’s mother made a plea.

“I just want whoever did this just to come forward, please, just to come forward,” the boy’s mother, Aquasia Parham, said. “He was only 4 years old.”

From the start, it was not easy.

“[Police] didn’t have any leads,” said Michael Mills, board president of Metro Denver Crime Stoppers. “We did get a lot of tips on this.”

About a dozen tips came in on the triple homicide allowing police to focus on Hood, who is the nephew of one of the victims. Hood now faces three counts of first-degree murder.

Metro Denver Crime Stoppers tips help solve crimes

According to Mills, there’s been evidence of Metro Denver Crime Stoppers’ success for more than the past 40 years. The volunteer group has grown and gained more traction lately. Metro Denver Crime Stoppers now works with 43 law enforcement agencies in Colorado.

“You will remain anonymous if you go through Metro Denver Crime Stoppers,” Mills said.

The organization averages more than 400 calls a month. In November, Mills said 10 bank robberies were solved with one tip. In February, 14 bank robberies were solved with one tip.

Mills said more than 40% of tipsters either ask to share money with a victim or refuse to accept a reward. The organization does not receive public funding. It operates on fundraising.