He was not keeping a reasonable and proper lookout.
He was looking at his phone.
He was staring at his phone. (louder)
He was texting on his phone.
The reason a little girl was injured,
The reason a little girl was hurt and,
The reason a little girl lost her life is not easy to speak about.
But the reason is that one man was careless,
One man was inattentive,
And one man was negligent.