The Douglas County Sheriff’s Office arrested a man in connection to the March 6 pedestrian crash that left a 13-year-old dead. The man allegedly ran a red light.

Deputies arrested Ruben Morones, 52, on Wednesday on charges of careless driving causing serious bodily injury to a vulnerable road user, careless driving causing death and failure to obey a traffic control signal. He was booked into the Douglas County Jail, according to the news release. 

Alex Mackiewicz, 13, was heading to school on Venneford Ranch Road around 7 a.m. on a Onewheel electric skateboard. He continued through the intersection of Venneford Ranch Road and Highlands Ranch Parkway with the right-of-way and in the crosswalk, according to DCSO.

Morones was driving eastbound on Highlands Ranch Parkway, approaching the intersection. Morones then allegedly drove through the red light on Highlands Ranch Parkway, hitting Mackiewicz on the opposite side of the intersection.

Mackiewicz was thrown from the Onewheel and landed near the curb line as Morones came to a stop after the impact. 

Initial investigation showed no signs that Morones was speeding, or under the influence. 

The victim died at the scene, leaving his mother, Victoria Cegielski, and family mourning the teen. They held a candlelight vigil at the scene the next day. 

“Alex loved baseball and was a great athlete, proudly batting and pitching lefty,” his aunt, Wendy Cegielski, said on the family’s GoFundMe. “Alex was not just a son, brother and friend but a light in the lives of all who knew him. He was a gentle, kind and caring soul who loved his family.”

The GoFundMe raised over $62,000 in a week.

“This was a tragedy that has impacted not only Alex’s family but the entire Highlands Ranch community,” Douglas County Sheriff Darren Weekly said in the release. “As the sheriff, I take traffic safety very seriously, and we will continue to work hard to make our roadways safer through public education and traffic enforcement.”

The family has declined to talk about the case until March 21.