A 16-year-old boy who was killed in a double shooting in Pittsburg Monday night has been identified.

According to police and the Contra Costa County coroner's office, Steven Rosalez of Pittsburg died after a suspect shot him in the back around 7:45 p.m. in the 100 block of West Eighth Street.

Police said the same suspect shot Rosalez's friend, also a 16-year-old from Pittsburg, who was treated for a gunshot wound and is expected to survive.

After conducting interviews through the night, police identified the suspect -- a 23-year-old Pittsburg man on felony probation -- and arrested him with the aid of a SWAT team at his home in the 300 block of West 11th Street, police Lt. Ron Raman said.

Raman said a physical fight between the suspect and victims earlier Monday prompted the double shooting.

Police have not released the name of the surviving teen or the suspect.

The suspect, who police said has an extensive criminal history, was booked into county jail in Martinez where he is being held on $1 million bail.

Raman said the suspect and victims lived in the same area of Pittsburg, but that it is unclear how they knew one another.