(CNN) -- A former hospital worker systematically shot and killed four people in upstate New York on Saturday, authorities in two counties said. 

Former hospital worker Frank Garcia, 34, has been accused in the shooting rampage. 

Frank Garcia, 34, was arrested Saturday afternoon. Garcia knew all four victims, police said, but they didn't reveal details about the relationships. 

"The individuals who were shot were known to the suspect. It was not necessarily a random act," Monroe County Sheriff Patrick O'Flynn said. 

The first two victims -- Mary Sillman, 23, and Randall Norman, 41 -- were fatally shot before 5 a.m. at Lakeside Memorial Hospital in Brockport, where Garcia was once employed, O'Flynn said. Another woman was wounded and is undergoing treatment at a nearby hospital, he said. 

The second shooting happened at a house in nearby Ontario County on Saturday afternoon. 

Christopher Glatz, 45, and his wife, Kim, 38, were killed "execution-style" while their two teenagers were in the suburban Rochester home, Ontario County Sheriff Philip Povero said. 

The teens were not wounded, but it is unclear whether they witnessed the event. 

Povero said neighbors reported Garcia went door-to-door looking for the Glatzes' home. 

"He was in fact looking for the residence," Povero said. "He was saying different things to different people, but he was clearly looking for that home." 

Ballistic evidence has connected the two crime scenes, Povero said. Investigators found the matching brass cartridges from a pistol found on Garcia when he was arrested, he said. 

Garcia was arrested at a restaurant Saturday afternoon, CNN affiliate R-News in Rochester reported.  QUESTIONS:

Q1:
1. How many gunshot victims were there at the hospital?
2. How many people did Frank Garcia kill at the hospital?
3. How many of Frank Garcia's victims were killed at Lakeside Memorial Hospital?
Q2:
1. Who did Frank Garcia kill at the hospital?
2. Who were the victims of the hospital shooting?
3. Who did Frank Garcia shoot at Lakeside Memorial Hospital?
Q3:
1. What is the name of the killer?
2. What is the shooter's name?
3. Who is the perpetrator of the shootings?
Q4:
1. How old is Frank Garcia?
2. What is Frank Garcia's age?
3. What is the age of the shooter?
Q5:
1. Where was Frank formerly employed?
2. Where did Frank Garcia used to work?
3. What was the site of Frank's former employment?
Q6:
1. Were the victims known to the shooter?
2. Did Frank Garcia know his victims?
3. Did Frank Garcia know the people that he shot?
Q7:
1. How many shootings took place?
2. How many shooting incidents happened in total?
3. What was the total number of shooting incidents?
Q8:
1. How many people did Frank shoot in the Rochester home?
2. How many people were shot or wounded in Rochester?
3. What is the number of people Frank shot in the Rochester home?
Q9:
1. What was the age of the children of the Rochester shooting victims?
2. How old were the Rochester shooting victims' children?
3. What was the age group of the children present during the Rochester shooting?
Q10:
1. Were the teenagers shot in the Rochester home?
2. Did Frank Garcia shoot the teenagers in the Rochester home?
3. Were the teenagers in Rochester wounded in the shooting?
