The shootings on Valley freeways are hitting close to home for a woman, who is hoping to encourage people to come forward with information.
"If they keep on shooting, someone will get killed," said Cheryll Shaw, whose father was a victim of one of the D.C. snipers in 2002.
News of a serial shooter targeting drivers along Interstate 10 hits close to home for Shaw.
"It brings it back. This is the first time I have had to think about it like that again," she said.
Jerry Taylor was killed by Lee Boyd Malvo, while he was at a Tucson golf course.
"When my dad was killed, there were no clues," said Shaw.
It wasn't until seven months later, when Malvo and John Muhammad were arrested in connection to the shootings in D.C. that a connection was made to the death of Shaw's father.
"They found an Arizona credit card, so I know they came through Arizona,” said Shaw.
Shaw's tip was so small, yet so relevant, and it's what helped investigators connect the dots.
She's speaking out now, hoping it will encourage others to call in tips regarding the Valley freeway shootings because you never know if that clue will be what breaks the case.
"The people who know something need to come forward because this guy could be starting a new serial killing all over again and they need to tell someone," Shaw said.