The Rocklin Police Department has identified the victim of a fatal weekend stabbing as 51-year-old Robert Earl Vickney Jr.
He was stabbed once in the chest during a party at his home in the 6200 block of Swan Court and taken to Sutter Roseville Medical Center, where he was pronounced dead.
It was the first homicide in the city in six years, and police arrested Zachary Raymond Kachmar, 20, of Rocklin.
He was taken to Placer County jail, where he is being held without bail.
Investigators determined that Kachmar and Vickney had argued at the party, and Kachmar allegedly pulled out a pocket knife and stabbed Vickney once. It was not known Sunday what the argument was about, but police have recovered the knife.
Kachmar knew the victim's son, according to Rocklin police Capt. Lon Milka.
John Brunet, who coached football with Vickney, left the party about 30 minutes before police say the stabbing occurred. He described the atmosphere of the party, which was held for Vickney's stepson, as calm.
"It was very low-key," Brunet said. "Nothing was really going on."
Vickney was known in Rocklin for being a defensive-minded football coach who enjoyed working with young players, Brunet said. In 2005, Brunet and Vickney coached the Rocklin Junior Thunder to an undefeated season to claim the Northern California State Championship.
The two discussed that season as Brunet was leaving the party.
"He walked up and gave me a hug like we were brothers," Brunet said. "I shook his hand and gave him a hug and he said, 'We need to coach football again.' He cracked a smile, and I cracked a smile and pointed at him and walked out the door."
Call The Bee's Benjamin Mullin, (916) 321-1034.