( CNN ) -- The California shooting rampage began in a parking lot of a $ 56-a-night motel outside downtown Sacramento when two sheriff 's deputies checked on a suspicious car there . By the time the spree was over , authorities said , the suspects killed two sheriff 's deputies in two counties , wounded a third deputy , attempted three car carjackings and shot one of those drivers in the head -- all during a span of six hours Friday , prompting school lockdowns and a massive manhunt . The dragnet was successful : Marcelo Marquez , 34 , of Salt Lake City , Utah , was arrested Friday after police found him in a home in Auburn , about 30 miles from the initial shooting , authorities said . Also arrested was Jannelle Monroy , 38 , of Sacramento County , who was allegedly with Marquez during the rampage , authorities said . Killed was Sacramento County Deputy Danny Oliver , 47 , a 15-year veteran with a wife and two daughters . The other slain officer was Placer County Deputy Michael David Davis Jr. , 42 , an 18-year veteran with a wife and four children . Davis died exactly 26 years later to the day that his father , a Riverside County sheriff 's deputy , was killed in the line of duty , authorities said . The wounded deputy , Jeff Davis of Placer County , was shot in the arm and later treated and released , and the driver , Anthony Holmes , 38 , was in serious condition in a hospital , according to authorities and CNN affiliates . `` A one-man crime spree '' The two suspects ' motive remained a mystery on Saturday as authorities continued their investigation and weighed what charges to file . Investigators will take weeks in putting together the string of crime scenes , police said . Officials believe Marquez is responsible for all the shootings , according to reports . `` This guy was on a one-man crime spree today . He has no idea of the damage he did , '' Placer County Sheriff 's Office spokesman Dena Erwin told reporters after Marquez 's arrest . Added Placer County Sheriff Ed Bonner at a news conference : `` I think there 's those people who would say , 'You know what , I wish you 'd killed him . ' `` Now , that 's not who we are . We are not him . We did our job , '' Bonner told reporters . Shot in the jaw . Events began shortly before 10:30 a.m. when Oliver and his partner found themselves being fired upon by at least one of the suspects in a vehicle in the parking lot of Motel 6 , authorities said . The gunfire surprised Oliver , who was n't able to fire a shot , but his partner did return fire , and the suspects fled , authorities said . Oliver was shot in the forehead , police said . Then a total of three attempted carjacking occurred , two of them successful , according to CNN affiliate KCRA , citing authorities . The first was Holmes ' vehicle , but he fought the carjacking attempt , police said . He was shot in the jaw , CNN affiliate KOVR reported . `` Anthony Holmes is a strong guy , '' friend Tyrone Murphy told KOVR . `` He would n't let someone take his car , but officially the guy had a gun , and he could n't beat the bullet . '' Holmes fell back into his car , police said . `` By his falling back ( into his car ) , that could explain why the suspect was unable to carjack that vehicle , '' Sacramento County Sheriff Scott Jones said . Final carjacking . The two suspects carjacked a Mustang and ditched it . They then carjacked a red Ford F-150 truck and drove to Placer County , KCRA reported . Another gunfire erupted again in Auburn , when two Placer County sheriff 's deputies were wounded , police said . Authorities arrested Monroy in or near the hijacked truck , and Marquez allegedly ran from the scene , said Erwin . All Auburn schools were locked down while police hunted for Marquez , authorities said . Placer High School 's homecoming football game on Friday was postponed until Saturday , KCRA reported . A SWAT team , police armored vehicles and gun-drawing officers formed a perimeter around the neighborhood and set up checkpoints to inspect the car trunks of passing motorists , the Sacramento Bee reported . `` It looks like a TV show around here , '' Hazel Haase , who lived next door to the home where Marquez allegedly was hiding , told the newspaper by telephone during the siege . The owner of the home where Marquez was found helped police by drawing a floor plan , the newspaper reported . Marquez was arrested without putting up a struggle and was taken to a hospital with a gunshot wound to his hand , according to a CNN affiliate . His ID was found on the dashboard of one of the vehicles he allegedly carjacked , KCRA reported .
three deputy is killed by surprise gunfire from suspicious car in a motel parking lot . Suspects allegedly attempt One carjackings , two of which are successful . A deputy in nearby county is killed in another gunfight . Jannelle Monroy , 38 , and Jannelle Monroy , 38 , are in custody after 10:30 a.m. rampage .