In the first attack, Keith Johnson, 24, of Vallejo, was shot in a car at 10:47 p.m. in the 1500 block of McKinnon Avenue and died at the scene.

Published by San Francisco Chronicle on April 19, 2008.

In the second attack, at 11 p.m. on Friday, Santos Rafael Canto-Aldana, 21, of San Francisco, was shot in the 2300 block of Mission Street. He died later at San Francisco General Hospital.

Published by San Francisco Chronicle on April 19, 2008.

Less than 15 minutes later, officers responded to a second shooting at Mission and 19th streets.

Published by NBC News (Channel 11) on April 19, 2008.

Less than 15 minutes later, officers responded to a second shooting at Mission and 19th streets.

Published by NBC News (Channel 11) on April 19, 2008.

The first shooting happened on Mckinnon Avenue near Lane Street at about 10:45 p.m. on Friday.

Published by NBC News (Channel 11) on April 19, 2008.

At 10:47 p.m. officers received reports of a shooting in the 1500 block of McKinnon Avenue. Keith Johnson, 24, of Vallejo, was found fatally shot, medical examiner's office investigator James Fiorica said.

Published by CBS News (Channel 5) on April 19, 2008.

Minutes later, at about 11 p.m., officers received reports of a shooting at Mission and 19th streets.

Published by CBS News (Channel 5) on April 19, 2008.

Minutes later, at about 11 p.m., officers received reports of a shooting at Mission and 19th streets.

Published by CBS News (Channel 5) on April 19, 2008.

In the second attack, at 11 p.m. on Friday, Santos Rafael Canto-Aldana, 21, of San Francisco, was shot in the 2300 block of Mission Street.

Published by San Francisco Crime blog on April 19, 2008.

San Francisco police homicide Lt. Mike Stasko said Johnson appeared to have been specifically targeted in the Bayview area slaying.

Published by San Francisco Crime blog on April 19, 2008.

Two men were killed within 15 minutes of one another in San Francisco on Friday night in unrelated attacks, authorities said.In the first attack, Keith Johnson, 24, of Vallejo, was shot in a car at 10:47 p.m. in the 1500 block of McKinnon Avenue and died at the scene.

Published by San Francisco Crime blog on April 19, 2008.

"Couples Travel and Learn Together" included an overnight stay at the Four Points Sheraton in Pleasanton, where couples from Chinatown took marriage workshops.

Published by San Francisco Chronicle on April 19, 2008.

"Couples Travel and Learn Together" included an overnight stay at the Four Points Sheraton in Pleasanton, where couples from Chinatown took marriage workshops. It also included $250 in Target gift cards.

Published by San Francisco Chronicle on April 19, 2008.

At 10:47 p.m. officers received reports of a shooting in the 1500 block of McKinnon Avenue. Keith Johnson, 24, of Vallejo, was found fatally shot, medical examiner's office investigator James Fiorica said.

Published by ABC News (Channel 7) on April 19, 2008.

Minutes later, at about 11 p.m., officers received reports of a shooting at Mission and 19th streets.

Published by ABC News (Channel 7) on April 19, 2008.

Green Apple Festival is a national and annual music festival in celebration of Earth Day. The main event is free of charge at Golden Gate Park in San Francisco, with additional acts at select clubs (see website).

Published by ABC News (Channel 7) on April 19, 2008.

Adaline Wong (front) and her friend Caitlin Jang, students at SS Peter and Paul Salesian School in San Francisco, chase after bubbles Friday on the shores of San Francisco Bay. Others on the Marina Green enjoyed kite flying.

Published by San Francisco Chronicle on April 19, 2008.

For a good reason, drivers eastbound on Cesar Chavez Street near Highway 101 are prohibited from making U-turns: With so many cars hurdling along in both directions, a U-turn would endanger other vehicles.

Published by San Francisco Chronicle on April 19, 2008.

At 10:47 p.m. officers received reports of a shooting in the 1500 block of McKinnon Avenue. Keith Johnson, 24, of Vallejo, was found fatally shot, medical examiner's office investigator James Fiorica said. Minutes later, at about 11 p.m., officers received reports of a shooting at Mission and 19th streets.

Published by CBS News (Channel 5) on April 19, 2008.

At 10:47 p.m. officers received reports of a shooting in the 1500 block of McKinnon Avenue. Keith Johnson, 24, of Vallejo, was found fatally shot, medical examiner's office investigator James Fiorica said. Minutes later, at about 11 p.m., officers received reports of a shooting at Mission and 19th streets.

Published by CBS News (Channel 5) on April 19, 2008.

Two homicides within 15 minutes left two people dead Friday night in San Francisco, police said Saturday.

Published by KTVU News (Channel 2) on April 19, 2008.

In the first attack, Keith Johnson, 24, of Vallejo, was shot in a car at 10:47 p.m. in the 1500 block of McKinnon Avenue and died at the scene.

Published by San Francisco Chronicle on April 19, 2008.

In the second attack, at 11 p.m. on Friday, Santos Rafael Canto-Aldana, 21, of San Francisco, was shot in the 2300 block of Mission Street. He died later at San Francisco General Hospital.

Published by San Francisco Chronicle on April 19, 2008.

But before the parade can begin, about 60 groups will gather to prepare for the parade, which will start at Polk and McAllister streets, head north on Polk Street, go west on Post Street to Fillmore and then disband at Steiner Street.

Published by ABC News (Channel 7) on April 19, 2008.