Authorities report three arrests in the Monday slaying of a bicyclist in Bullhead City. 33-year old Juan Pedro Flores, Bullhead City, was found dead at the scene of the altercation at 5:00 p.m. in the 500 block of Riviera Boulevard.

Bullhead City police spokeswoman Emily Fromelt said were investigating witness accounts of the altercation that erupted in gunfire and ended with suspects piling into an older model Honda Civic before speeding away from the crime scene. Fromelt said an anonymous tip on Wednesday identified the shooter as Jake Patrick Biunno, 21, Fort Mohave.

Fromelt said the tip led to Wednesday’s arrests of Biunno for first degree murder as well as Biunno’s girlfriend, Amber Monique Torrez, 22, Fort Mohave and Christopher James Pfrimmer, 22, Fort Mohave. She said Torrez and Pfrimmer are charged with hindering prosecution.

“Police have determined that Flores and the three subjects in the Honda Civic got into a road rage type incident,” Fromelt said in a news release. “Flores and Pfrimmer got into a physical altercation. Biunno then reportedly shot Flores. The three people in the vehicle then drove away.”

Fromelt said the suspects did not know the victim. She said the investigation continues.