Friends described Yancy Noll as an adventurer who loved the outdoors. He also loved animals and often took his dog, Lola, on hiking trips.

WATCH: “48 Hours:” Student of Murder

Witnesses at the crime scene provided authorities with a description of the shooter and his vehicle: a gray convertible BMW Z4. Authorities released this police sketch of the suspect.

WATCH: “48 Hours:” A Student of Murder

On Sept. 14, 2012, a tipster provided police with the name Dinh Bowman. Three weeks later, Bowman was arrested and charged with Yancy Noll’s murder.

WATCH: “48 Hours:” A Student of Murder

Dinh Bowman was the most unlikely of potential suspects. He was a former child prodigy who entered college at age 12. In his 20s, Bowman opened his own business, a boutique engineering company called Vague Industries, that specialized in robotics.

WATCH: “48 Hours:” A Student of Murder

Dinh Bowman seemed to have a perfect life. In 2007, he met Jennifer Palm at an education seminar. They were married a year later.

WATCH: “48 Hours:” A Student of Murder

Police obtained numerous photos of the couple after retrieving Dinh Bowman’s computers. The photos show the couple frequently traveling around the world.

WATCH: “48 Hours:” A Student of Murder

Police say Jennifer Bowman, a dentist, had an annual salary of $250,000 and was the primary breadwinner in the Bowman household.

WATCH: “48 Hours:” A Student of Murder

On Nov. 19, 2014, two years after Yancy Noll was savagely gunned down, Dinh Bowman was tried for first-degree murder.

WATCH: “48 Hours:” A Student of Murder

Jennifer Bowman never attended her husband’s trial, but kept in touch through hundreds of recorded jailhouse phone calls. In those calls, Jennifer and Dinh Bowman spoke in baby talk and had affectionate nicknames: Dinh was “Bunny” and Jennifer was “Snuggles.”

WATCH: “Bunny” and “Snuggles’” jailhouse phone calls

WATCH: “48 Hours:” A Student of Murder

On Dec. 9, 2014, the jury in Dinh Bowman’s murder trial began deliberations. Three days later, Bowman was found guilty of first-degree murder. He was sentenced to 29.1 years in prison.

WATCH: Friend: Killer showed no remorse in jailhouse conversation

WATCH: “48 Hours:” A Student of Murder

“48 Hours” correspondent Peter Van Sant tried to speak to Jennifer after Dinh Bowman’s trial, but she refused to talk.

On Nov. 5, 2015, Jennifer, who had changed her last name, officially divorced Dinh Bowman.

WATCH: “48 Hours:” A Student of Murder

Although he’s gone, for his friends, the memories of Yancy Noll remain as alive as ever.

WATCH: “48 Hours:” A Student of Murder