KANSAS CITY, Mo. -- The unsolved murder of a 3-year-old boy may have a new lead.
It comes following the arrest of 22-year-old Mickael Oliver on a federal gun charge.
In May 2017, 3-year-old Marcus Haislip III was riding in a car with his dad, Marcus Haislip, Junior, and uncle, Michael Haislip, near 54th Street and Park Avenue in Kansas City, Missouri, when an unknown shooter or shooters opened fire, riddling the car with bullets.
Both men were injured.
His mother recently posted a heartfelt message on Facebook which says in part, "It's been six months and three days since I last hugged, blew a kiss and told my son Mommy loved him...the last day I heard Mommy I love you."
Screengrab from Facebook
"What do you tell another mother? All you can do is sit there and cry with her, hug her. There's nothing to tell her," said Aisha Coppage.
Coppage has a special bond with Marcus’s mother because she understands her pain.
Court records say after that source asked Oliver about the shooting, he admitted to the source he was there at the time with another unidentified man.
Oliver also told the source he personally knew Marcus and used to watch the boy.
Another source told the ATF Oliver and another unidentified man both opened fire on the car with Marcus inside.
Authorities arrested Oliver after the ATF source tried to buy some weapons from him, court records show.
But instead, Oliver took $1,700 from the source and then pointed one of those loaded weapons at them and told them to leave.
By that point, records say Oliver had already sold several guns to the ATF source, including stolen weapons.
"These guns move very quickly, so it can be a matter of days to sometimes 15 to 20 years later, these guns are still being recovered in crimes," said Kevin O'Keefe, ATF Operational Intelligence Chief.
Gun thefts on the rise
Stolen guns are a big problem nationwide.
The 41 Action News Investigators, along with more than a dozen NBC TV stations across the country, teamed up with the nonprofit journalism organization The Trace to identify the scope of the issue.
After getting more than 842,000 law enforcement records from across the country, the collaborative effort found stolen guns are routinely turning up at crime scenes by matching the make and serial numbers of stolen guns to guns recovered at crime scenes.
A review of that data found more than 23,000 matches of stolen guns to other crime scenes, even though some law enforcement agencies didn't provide information about the circumstances of recovering a stolen weapon.
The data is mostly from the year 2010 through 2015.
In our area, there are hundreds of reports of stolen guns being used in one or more crimes during that time.
Kansas City, Kansas had 7 cases.
Olathe had 150.
Topeka had 215.
And Kansas City, Missouri had 273.
Law enforcement data via The Trace and NBC News
"The numbers and the trends we're seeing indicate that this is not going away," O'Keefe said.
For example, court records say guns Oliver sold to the ATF source have been linked to 11 unsolved, non-injury shootings in the metro in just the last two years.
And stolen guns are being sold right out in the open.
Court records show a gun that was sold at the Eastwood Trafficway McDonald's in KCMO had been stolen from a locked, parked vehicle at the Worlds of Fun amusement park.