Plano police are investigating a possible murder-suicide involving a mom and her young son.
Police believe Lydia Soto, 28, killed her 4-year-old son, whose name has not been released.
Officers got a call from one of Soto's friends around 10:30 a.m. on Friday and performed a welfare check at the woman's west Plano apartment, the Windhaven Village Apartments in the 6200 block of Windhaven Parkway.
Police found their bodies when they got inside, both with a gunshot wound.
Neighbors say Soto and her son had only lived at the apartment complex for about six months.
They described them both as happy and friendly.
Foul play is not suspected and no suicide note was left by the mother, according to police.