A Colorado man pleaded not guilty Tuesday afternoon to one count of murder and numerous other charges for crashing his car into a crowd at the Venice Beach Boardwalk in Los Angeles, killing an Italian woman who was on her honeymoon.

According to CNN, Nathan Louis Campbell has been charged with one count of murder, 16 counts of assault with a deadly weapon and 17 counts of hit-and-run for Saturday night’s fatal crash. The charges were confirmed by Los Angeles County Deputy District Attorney Gary Hearnsberger.

Campbell, 38, is currently being held on $1.48 million bail and could be sentenced to life if convicted.

According to the Associated Press, Campbell's lawyer Philip Dube said he has expressed remorse for the incident, and says he didn't intentionally try to hit anybody.

As previously reported, Campbell was behind the wheel of his 2008 blue Dodge Avenger when he swerved onto the Venice Beach Boardwalk on Saturday evening. Witnesses indicated that Campbell appeared to be aiming for pedestrians.

Campbell’s car plowed into the crowd, killing 32-year-old Italian tourist Alice Gruppioni, and injuring eight men and eight women, according to CNN. The suspect abandoned his vehicle after the incident and turned himself in to Santa Monica police a couple of hours later.

Authorities have not revealed any motivation. CNN reports that Campbell worked as a chef and house manager at Phoenix Concept, a drug and alcohol treatment center in Denver, from April 2010 until February 2012, and again from December 2012 until June of this year.

"While he was here he was a good employee and never had any issues that raised concern," said David Hall, program director for Sobriety House, which merged with Phoenix Concept in 2007.

According to Reuters, an estimated 100 people gathered on the Venice Beach Boardwalk on Monday night to have a moment of silence for Gruppioni, who was on her honeymoon, and the other victims.