Tristan Schulz, left, is held by his mother Mindy. He was killed when he and his mother were struck by a Jeep in Loudoun County in August. His mother was treated and released from a hospital. (Aliyah Dastour/Alimond Studios)

A Virginia man was indicted on a charge of involuntary manslaughter Monday, weeks after the SUV he was driving struck and killed a 5-month-old baby in a stroller, prosecutors said.

On Aug. 31 at around 8:10 a.m., John Miller IV was traveling north on Coton Manor Drive and taking a left onto Riverside Parkway in Landsdowne when he struck Tristan Schulz and his mother, Mindy Schulz, who were walking north in a crosswalk at that intersection, authorities said at the time. Tristan was killed, and Mindy Schulz was seriously injured. Miller remained at the scene.

Now Miller, 45, has been indicted by a grand jury in Loudoun County Circuit Court, where he was charged with one count of involuntary manslaughter, one count of reckless driving and one count of failure to yield to a pedestrian in a crosswalk, prosecutors said.

Prosecutors declined to provide details on what led to the crash. In a search warrant filed in September, authorities said a witness reported that the SUV driver had been holding a phone in his left hand as if he was watching or reading something” before the crash. The witness also said the Jeep was “tailgating” the vehicle in front of it, and tried to “beat” the mother and child through the intersection.

John Miller IV (Loudoun County Sheriff)

Miller’s attorney declined comment.

The incident led to criticism of the intersection where the Schulz and her son were struck. Riverside Parkway, which has a 40 mph speed limit, was widened two years ago and often takes overflow traffic from Route 7.

“I’m an experienced driver and I’m nervous about going through it,” Jonathan Arnold, who lives in the area, said of the intersection in September. “It’s a very distracting intersection.”

Schulz had just dropped her 7-year-old son, Hayden, off at school and was taking a walk to get fresh air when her baby was killed.

“It hurts at a level so visceral, so primal, that just surviving the pain and darkness of that loss feels insurmountable,” Schulz wrote in an email in October. “This is what we try to process every moment of every day.”